Sports Betting Glossary
Plain-English definitions for every term you will see on a sportsbook, a pick embed, or a capper breakdown. Reference material for the /glossary bot command and the /docs/glossary web page.
92 terms and growing. The Discord /glossary bot ships a larger 207-entry lookup (includes book-slang and prop-market jargon); this doc is the curated reference copy.
21+ only. Gambling involves risk of loss. Not financial advice. If you or someone you know has a gambling problem, call 1-800-GAMBLER.
A
Action: A bet, or the volume of betting on a market. "Taking action" means placing a bet.
Against the Spread (ATS): How a team performs after the point spread is applied. A 10-0 team may be 3-7 ATS if it was favored to win by larger margins than it actually did.
Alt Line: An alternate version of a standard market (alt spread, alt total, alt player prop) with different odds. Useful for finding value when the main line is softly priced.
American Odds: Odds format using + or - (+150, -110). Negative numbers show how much you must risk to win $100. Positive numbers show how much you win on a $100 risk.
Arbitrage (Arb): Placing bets on every outcome of an event across different books to lock in a profit regardless of result. Books ban or limit arb players.
Asian Handicap: Alternative spread format used heavily in soccer. Eliminates draw outcome by handicapping one side.
B
Backdoor Cover: When a trailing team scores late in a game that does not change the winner but covers the spread, usually via garbage-time play.
Bankroll: The total money set aside for sports betting. Should be money you can afford to lose entirely.
Bet Slip: The ticket that records the details of your wager before you place it.
Book (Sportsbook): The operator taking bets. DraftKings, FanDuel, BetMGM, Caesars, Circa, Pinnacle, and Fanatics are the major US books.
Buying Points: Paying worse odds in exchange for a more favorable spread or total. Usually a bad value trade.
C
Cash Out: Settling a bet before the event ends for an amount the book offers. Book holds extra value on most cash-out offers.
Chalk: The betting favorite. "Chalk bettor" usually means someone who mostly bets favorites.
Circle Game: A game where bookmakers have reduced limits due to injury, weather, or information imbalance.
Closing Line: The final line a book offers before an event starts. Widely used as the fairest reflection of true probability.
Closing Line Value (CLV): The difference between the odds you got and the closing odds. Positive CLV over time correlates strongly with profitable betting.
Combo Bet: Same as a parlay outside the US.
Correlated Parlay: A parlay where legs are statistically related (same QB over passing yards + WR1 over receiving yards). Most books ban correlated legs in SGPs, some allow them.
Cover: To beat the spread.
D
Dead Heat: A tie in a prop or futures market that the book settles with reduced odds across winners.
Dime: $1,000. "A dime bet" is $1,000.
Dog (Underdog): The team expected to lose. Plus odds on the moneyline.
Draw No Bet: Soccer market that pushes if the match ends in a tie.
E
Edge: The percentage advantage your true probability has over the book's implied probability. 1-3% edge is elite.
EV (Expected Value): Expected long-run return on a bet. Positive EV bets are profitable in the long run even if they lose often.
Even Money: Odds of +100 (or 2.00 decimal). Risk $100 to win $100.
Exotic: Any non-standard bet. Futures, props, parlays, teasers all count.
F
Fade: To bet against. "Fade the public" means bet opposite of where recreational money is flowing.
Favorite: The team expected to win. Minus odds on the moneyline.
First Half (1H): Bet lines specific to the first half of a game.
Fractional Odds: Odds format using fractions (5/1, 7/2). Common in the UK and horse racing.
Futures: A bet on an event that will resolve later in the season (Super Bowl winner, NBA MVP, league-wide leader).
G
Grand Salami: A single bet on the total goals or runs across every game on a league's slate that day.
Grinder: A bettor who makes many small wagers trying to accumulate steady profit.
H
Halftime Bet: A line posted during halftime that bets only on the second half result.
Handicap: The point spread in soccer, or the general concept of handicapping a matchup.
Hedge: Placing an opposite-side bet to reduce risk on an earlier bet. Usually done on live games or futures.
Hold (Vig, Juice, Overround): The book's built-in margin across a market. 4-5% is common on spread / total, 5-7% on props, 1-2% at reduced-vig books like Pinnacle and Circa.
Hook: Half a point on a spread or total (3.5, 7.5). "Buying the hook" means paying to move off the key number.
I
Implied Probability: The probability a given odds price implies. -110 implies 52.4% win rate to break even.
In-Play (Live) Betting: Betting on a game while it is happening. Odds change every play.
J
Juice (Vig): The book's cut built into odds. -110 on both sides is a 4.5% juice. Lower juice books like Pinnacle and Circa pay more per unit bet.
K
Kelly Criterion: A bet-sizing formula that maximizes long-run bankroll growth based on edge and odds. Full Kelly is aggressive; most bettors use Half or Quarter Kelly to reduce variance.
L
Lay: Taking the opposite side. On betting exchanges you can lay a team (bet they lose).
Limits: Maximum accepted stake on a given market. Sharp books post higher limits; soft books cut limits aggressively on winning players.
Line: The odds, spread, total, or price a book is offering.
Line Movement: A change in the odds between open and close. Sharp movement is caused by informed money.
Line Shopping: Checking multiple books for the best available price before placing a bet. The single highest-ROI habit for a sharp bettor.
Live Betting: See In-Play Betting.
Lock: A pick advertised as a guaranteed winner. There is no such thing. Fade anyone selling locks.
Long Shot: A large underdog with big plus odds.
M
Middle: A scenario where both legs of a two-sided bet can hit. Rare but profitable when found.
Matched Betting: Using sportsbook promos against yourself to lock in a guaranteed profit. Legal in most jurisdictions but often bonus-abuse policy-blocked.
Moneyline (ML): A straight bet on which team wins, no spread involved. Priced with American odds.
N
No Action: A bet that is voided and refunded, usually due to postponement or a rule trigger.
Novelty Bet: A non-sports market (Oscars, election, reality TV). Legal in some jurisdictions, not others.
O
Odds Boost: A promotional price on a market that is better than market consensus. Usually a book loss-leader to attract sign-ups.
Off the Board: A market that is not currently accepting bets, usually due to injury news.
Opening Line: The first line a book posts for an event.
Over / Under: A bet on whether the total combined score will be above or below a given number.
Overlay: A bet where true probability exceeds implied probability. The bettor has an edge.
Overround: Another word for juice / hold.
P
Parlay: A single ticket combining multiple legs. All legs must win. Pays more than the sum of individual legs, at the cost of stacked book hold.
Pick'em (PK): A game where neither team is favored by the spread.
Player Prop: A bet on an individual player's stat line (points, rebounds, passing yards).
Point Spread (Spread): The handicap added to one side to balance the market. Lakers -6.5 means the Lakers must win by 7 or more to cover.
Push: A tie with the line. Stake is returned. Common when betting a whole-number spread or total.
Q
Quarter-Kelly: Staking 25% of the full Kelly-recommended bet size. Reduces variance sharply while capturing most growth. The default in NuroPicks /picks and /potd.
R
ROI (Return on Investment): Profit divided by total risked, usually shown as a percentage. 5%+ sustained is professional-level.
Reverse Line Movement (RLM): When the betting line moves opposite the public money percentage. Strong sharp signal.
Round Robin: A parlay that covers multiple combinations of a pool of legs. You pick 4 legs, the book creates all 2-, 3-, and 4-leg parlay combos.
Runline: MLB spread, typically set at 1.5 runs.
S
Same Game Parlay (SGP): A parlay where all legs come from one game. Books price these with heavy juice because of correlation risk.
Sharp: A winning professional bettor. Also used to describe well-balanced books (Pinnacle, Circa).
Side: One team's price on a spread or moneyline.
Square: A casual recreational bettor. Books make most of their margin from squares.
Steam Move: A sudden, coordinated line change across multiple books. Signals heavy sharp action.
Straight Bet: A single-leg wager. Opposite of a parlay.
Sucker Bet: A bet with very poor EV, often dressed up to look attractive (big parlays, long-shot props with hidden vig).
T
Teaser: A parlay variant where you adjust spreads or totals in your favor at worse odds. Common NFL teaser: 6-point teaser through key numbers 3 and 7.
Total (Over / Under): See Over / Under.
True Odds: The fair odds reflecting the actual probability of an event. Opposite of book odds, which include juice.
U
Underdog: See Dog.
Unit: A standardized bet size. 1 unit is typically 1-2% of bankroll. Tracking ROI in units normalizes across bettors.
V
Variance: The short-term swings in results that happen even with a winning strategy. Good process sometimes loses for long stretches.
Vig (Vigorish): See Juice.
W
Wiseguy: Slang for a sharp bettor.
Wager: A bet. Any placed action on a market.
Win Total: A season-long futures market on how many games a team will win.
X / Y / Z
XP: Experience points inside the NuroPicks Discord. Earned from picks, quiz modules, and daily claims. Unlocks badges and tier perks.
Yield: ROI expressed as profit per unit staked, often used by European tipsters. Same idea as ROI.
Zeroed Out: A book closing your account or reducing limits to near zero, usually because you are beating them.
Market shorthand quick reference
- ML moneyline | PL puck line | RL runline | SP spread
- TT team total | FH / SH first half / second half
- SGP same game parlay | RR round robin
- YRFI / NRFI yes / no run first inning (MLB)
- F5 first five innings (MLB) | 1H / 2H first / second half
- O / U over / under | PK pick'em
- CLV closing line value | ATS against the spread | DVOA defense-adjusted value over average
Every NuroPicks pick embed includes the Not financial advice | 1-800-GAMBLER footer. If betting is hurting your life or finances, use /selfexclude in Discord or call 1-800-GAMBLER.
Additional terms (auto-synced from glossary.json)
These 191 terms are mirrored from the canonical web/content/glossary.json so the Discord /glossary bot command, the web glossary, and this doc stay aligned. Re-run node scripts/sync-glossary.mjs after editing the JSON.
1H (First Half): A bet on just the first half of a game. Popular in NFL/CBB. Often better liquidity than quarter bets.
2H (Second Half): A bet on just the second half of a game. Lines reset at halftime based on 1H score.
A
Anytime TD Scorer: NFL prop: will player score any TD. More hittable than first TD. Popular SGP leg.
Asian Line: Half-point handicap that eliminates the push. +0.25 = half stake at +0, half at +0.5. Popular on soccer.
Assists Prop: NBA prop: over/under assists for a player. Point guards dominate this market. Watch blowout risk (pulls starters).
ATS (Against The Spread): A bet on whether a team will cover the point spread. If Chiefs are -3.5, they must win by 4+ to cover ATS.
B
Bad Beat: Losing a bet that looked won. Missed free throw to cover, last-second TD with game decided, etc. Part of the variance.
bet365: UK-origin global book, limited US rollout. Best early pricing on EPL, Champions League. Soft on golf props.
Betfair (Exchange): Peer-to-peer betting exchange. Bet for or against outcomes. Lay betting = betting against. Popular in UK/EU.
BetMGM: Third major US sportsbook. Tied to MGM casino rewards. Good parlay boosts. Slow to pay winners some markets.
Bonus Wager Requirement: Play-through on free bets: often 1x but can be 3x or more. Books that require 5x+ are traps. Always read T&C before opt-in.
Both Halves to Score: Each team scores at least 1 goal in each half. Uncommon prop. Decent value on high-total matches with poor defenses.
Bovada / offshore: Non-US-licensed offshore book. Accepts crypto. No legal protection. Not recommended.
BTTS (Both Teams To Score): Soccer prop: both teams score at least one goal. Yes/No outcomes. Popular Over/Under alternative.
C
Caesars Sportsbook: Fourth major US book. Tied to Caesars Rewards. Best odds on most NFL spreads in select markets.
Capper (Handicapper): Someone who analyzes and picks bets. Verified cappers have third-party-tracked records with CLV data.
Cards Prop: Soccer prop: yellow/red cards. Referee identity matters more than teams. Ref-tight refs = over, lenient = under.
Chalky (Adjective): A slate or parlay full of favorites. "All chalk" means every leg is a favorite. Lower variance, lower payout.
Championship Futures: Season-long bets on who wins the title. Sharp money attacks opening week. Field bets (any non-favorite) often +EV in wide-open races.
Circa Sports: Vegas sharp book. Highest limits in Nevada, no-ban policy. $1M NFL contest. Sharps welcome.
Clean Sheet (Soccer): Team keeps opposition from scoring. Defender + goalkeeper prop. EPL strong defenses at home = value.
CLV (Closing Line Value): The difference between your bet odds and the final closing odds. Consistently beating the close = you have real edge. The #1 metric for long-term profitability.
Compensatory Pick: An extra draft selection awarded by the NFL (Rounds 3 through 7) to teams that lost more or better-valued free agents than they signed the prior offseason. Compensation formula weights salary, playing time, and postseason honors. Since 2017, compensatory picks can be traded. Why it matters: compensatory-pick-count O/Us (team season-totals usually 1.5 to 4.5) reward research, because the formula leaks weeks before the official announcement via league-source spreadsheets like OverTheCap.
Conditional Pick: A trade-acquired draft selection whose round or year flips based on future events: games played, snap count, playoff seed, Pro Bowl selection. Written into the trade memo as "2027 fifth-round pick that becomes a fourth if the player plays 60 percent of snaps." Why it matters: conditional-pick escalator props (will-it-elevate O/U, earliest-qualifying-week) are usually thin-market with stale books, so a reader who tracks snap counts weekly has a real edge over the implied line.
Confidence Interval: 95% CI on ROI after 500 bets: typically +/-5%. So reported ROI is rough. Use 1000+ bets before trusting claims.
Corners Prop: Soccer prop: total corner kicks. Driven by possession % and attacking style. Weak market = edge available.
Corners Unders: Soccer total corners bet. Teams that defend deep + counterattack = unders. Possession-dominant = overs.
Correct Score: Exact final score bet (soccer-heavy). Long odds (+500 to +2500). Low EV unless paired with strong model.
Correct Score (Soccer): Exact final score prediction. Long odds (+500 to +2500). Low hit rate. Popular derby/rivalry bet.
Correlation (SGP): When one leg hitting changes probability of another. SGP books price this in (compound vig), but missed correlations = EV.
Cross-Sport Parlay: Parlay legs from different sports (NBA + NHL + MLB). Standard parlay vig, no correlation adjustment.
D
Daily Double: Horse bet: pick winner of 2 consecutive races. Popular track bet at nearly every US venue.
Day 2 Pick: A Round 2 or 3 selection, typically picks 33 to 100. Day 2 carries the highest per-pick expected value for teams because the talent curve is flatter than Round 1 but the rookie-contract savings are still large. Books offer team-specific Day-2-trade-up and first-player-drafted-by-team props. Day 2 opens Friday night, 7pm ET, with a 7-minute clock (vs Round 1 10-minute).
Dead Heat Rule: Golf/horse payout rule when multiple selections tie for a position. Payout is divided. Can turn +EV into -EV for placed bets.
Decimal Odds: European format. 2.00 = even money. 1.91 = -110 American. Multiply stake by decimal to get total payout including stake.
Devigging: Removing the sportsbook commission from odds to calculate true probability. Essential skill for +EV and arb hunting.
DFS (Daily Fantasy Sports): Lineup-building contests (DraftKings, FanDuel, PrizePicks, Underdog). Shares data and models with sports betting. Different legal framework per state.
DNB (Draw No Bet): Soccer market. Bet on Team A or Team B to win; if match draws, stake refunded. Lower payout vs moneyline.
Double Chance: Soccer market covering 2 of 3 outcomes (e.g. Team A or draw). Shorter odds, higher hit rate.
Draft Futures: Team-level futures markets that settle on Draft outcomes: over/under total first-round picks, next-season win total set on Draft night (repriced from the pre-Draft number within two hours), and prop ladders like rookie-of-the-year for drafted players. Distinct from traditional futures because the settle-date is Draft day itself, not the full season. Books post them the week of Draft and usually pull them within the window the first round closes.
Draft Night 1 (Round 1): Thursday of NFL Draft week. 32 picks, 10-minute clock per pick, ~3.5-hour broadcast. Books offer in-event live props on each upcoming pick (BetMGM, DraftKings most active). Highest-volume market is QB-related props in the top-10 window.
Draft Position O/U: Books post a draft slot number for individual prospects. Bet over (drafted later) or under (drafted earlier). Most actionable when team draft tiers leak through April pro days and 30-visit lists. Late team-needs pivots are the biggest source of variance.
Draft Tier: Position-grouped grade band a team places a prospect into (Tier 1 = top-15 talent, Tier 2 = mid-1st, Tier 3 = late-1st / early-2nd). Books price draft props off public consensus tiers but real team boards diverge. Tier mismatches drive the largest reaches and slides.
DraftKings: Largest US sportsbook by handle. SGP + live + props. Strong promos for new users. Limits winners quickly.
E
Each Way: Horse/golf market: half stake on win, half on place (top 3-5). Half bet pays even if horse places but doesn't win.
Each Way (Golf): Half stake on outright win, half on top-5 or top-10 finish. Dead heat rule applies on ties. Check book T&C.
Early Cash Out: Book offer to settle a live bet mid-game. Almost always shaves 3-7% from fair value. Only cash out if game state changes drastically or you need to hedge liability.
Esports Moneyline: Pick winner of match. Available for LoL, CS2, Valorant, Dota, Overwatch. Softer markets than traditional sports.
Exacta: Horse bet: pick 1st AND 2nd in exact order. Box it to cover either order at 2x cost.
F
Fading the Public: Betting against the popular side. Works best at 80%+ public money on one side with minimal line movement (book happy to take it).
Fanatics Sportsbook: Newest major entry (2024). PointsBetts US acquisition. Heavy promos year 1. Limits opening up.
FanDuel: Second-largest US sportsbook. Spawned from DFS. Known for NFL teasers and early live lines. Aggressive promo deposit match.
First 5 Innings (F5): MLB: bet on the score through 5 innings only. Isolates starting pitchers. Popular sharp market.
First Blood (Esports): Bet on which team gets first kill. MOBAs (LoL, Dota). Short-form prop, high variance.
First Goalscorer (Soccer): Who scores first goal in match. Anytime scorer is more reliable. Penalty takers + set-piece specialists have edge.
First Overall Pick (NFL Draft Prop): Market on which player gets selected #1 in the NFL Draft. -20000 chalk lines (heavy favorite consensus by April) carry no value. The sharp window opens when the consensus falls below -1000 and a real coin-flip exists between two QBs or a QB and a generational non-QB.
First QB Drafted (Prop): Market on which quarterback is the first QB selected. Distinct from First Overall Pick when a non-QB sits at #1. Tighter market than First Overall in late-April once the QB room shakes out (typically 2-4 QBs in the top-15 conversation).
First Round Leader (FRL): Golf: player with lowest Round 1 score. Long odds, high variance. Weather Round 1 is a key input.
First TD Scorer: NFL prop: which player scores first TD. Long odds, lottery ticket. Anytime TD is more consistent value.
First to Score: Which team scores first. Binary prop with no juice smoothing. High variance.
Flat Betting: Wagering the same unit size on every bet regardless of confidence. Simple and survivable. Baseline strategy for most bettors.
Foul Trouble Swing: Live line jumps 2 to 4 points when a star picks up a third foul before halftime or a fourth in the third quarter. Books react fast but not instantly. The edge window is the 30 seconds after the whistle, before the book re-prices. Highest leverage on teams with no bench scorer (Round 1 7-seeds).
Franchise Tag Pick Impact: Tagging a pending free agent blocks that player from counting in the NFL compensatory-pick formula the next offseason until they are either released, traded, or sign a new deal outside the tag. Why it matters: when bettors model team comp-pick totals, the tag-tracker matters more than the base free-agency signing list. One late-March tag can knock a 4.5 team down to 2.5 overnight, which moves the comp-pick O/U line faster than public-book models usually react.
Free Bet: Stake is not returned on win. Only profit pays out. Worth roughly 70% of face value. Use on long shots (+200 or higher).
G
Game 1 Overreaction: Series price often swings 40+ cents after Game 1 even though one game is a small sample. Classic rebuy window on the Game 1 loser before Game 2 tipoff, especially if the loser had less rest or lost by 5 or fewer.
GamStop: UK self-exclusion program. Block yourself from all licensed UK books simultaneously. US equivalent: state voluntary exclusion registries.
Geofencing: Books check your GPS/IP location. Must be inside a legal state at time of bet. Bet placed inside, settled anywhere (usually).
Goals Prop: NHL/Soccer prop: total goals scored. Power play usage + goalie quality + line-mates all in the model.
Grand Slam: Covered 4+ legs of a parlay. MLB: HR with bases loaded. Tennis context: winning all 4 majors in a year.
H
Halftime Live Adjust: Books reset the second-half spread and total at halftime based on 1H pace and score. Playoff 2H totals price 3 to 5 points lower than the implied 2H from pregame because coaches shorten rotations and slow pace. Fade blowout-overreaction 2H lines when the leading team was already up 15 or more.
Handle: Total amount of money wagered. "$100M handle" = $100M in total bets placed.
Handle Share: What % of total state handle each book captures. DK + FD dominate (70-80% combined in most states). Indicator of brand strength.
Hard Rock Bet: Florida-focused book. Fast live betting. Solid UFC and NBA player props. Limited states.
Head-to-Head (Golf): Match-up between 2 golfers: who finishes higher. Lower variance than outrights. Popular market for models.
Hedging Math: Formula: hedge stake = (original stake * original odds) / hedge odds. Lock in guaranteed profit on live parlays with one leg remaining.
Hits Allowed Prop: MLB pitcher or batter hits prop. Opposing team BABIP, ballpark factors, defensive alignment all matter.
Hold Percentage: What % of handle the book keeps as profit. NFL season hold = 7-9%. Books with <5% hold are too sharp and limit winners.
Home Court (Round 1): 1-seed and 2-seed host Games 1, 2, 5, 7. Historical Round 1 home-court win rate sits around 61% across the last 20 years. Books bake that into the series price, so edge lives in Game 3 and Game 4 spreads when the lower seed gets a home bounce.
Home Runs Prop: MLB prop: player to hit 1+ HR. Long odds. Ballpark HR factor and pitcher flyball % drive value.
Home/Away Splits: Team performance at home vs on the road. Massive edge in college, meaningful in pro. Altitude (Denver) is its own category.
Horse - Place: Bet horse to finish 1st OR 2nd. Lower payout, higher hit rate than Win.
Horse - Show: Bet horse to finish 1st, 2nd, OR 3rd. Lowest payout, highest hit rate.
Horse - Win: Bet horse to finish 1st. Pays out at morning line odds modified by pool action.
I
If Bet: Chained bets where Bet 2 only activates if Bet 1 wins. Rare format. Useful for small bankrolls wanting parlay-style upside.
Injury Report: Pregame list of injured players. Late scratches cause line movement. Subscribe to beat reporters for fastest info.
J
Juice / Vig (Vigorish): The sportsbook's commission. Standard is -110 on both sides (4.55% edge). The vig is how books make money.
K
Key Number: Common margins of victory. NFL: 3 and 7. NBA: none really. Crossing key numbers with the hook is worth 0.5-1 unit of EV.
KYC (Know Your Customer): Required ID verification to withdraw. Submit ID + address + sometimes source-of-funds. Standard at licensed books. Prevents money laundering.
L
Ladder Parlay: Rolling parlay where each leg stakes prior winnings. Big compounding upside, one miss wipes you. Emotional, rarely +EV.
Limit (Betting Limit): The max a book will take on a bet. Sharp books (Pinnacle, Circa) have high limits. Retail books limit winners fast.
Limited / Restricted: When a sportsbook cuts your max bet size. Usually happens to winners, arb players, or promo abusers. Spread action across books to avoid.
Live Dog: An underdog with a real chance to win, not just cover. Usually +150 to +300. Sharp dogs often go off at shorter prices by tip.
Lookahead Line: Line posted days in advance of a future game. Usually limited liability. Popular for injury-dependent futures bets.
M
Map Betting (Esports): Bet winner of specific map in a series. Knowing map pool + team specialties matters more than overall team strength.
Martingale: Doubling bet after every loss to recover. Math guarantees ruin with a finite bankroll. Do not use. Ever.
MLB Total (O/U): Combined runs in game. 8.5-9.5 is typical. Wind (out = overs), ballpark, weather, and L/R pitcher splits all factor.
Mock Draft: Public projection of all Round 1 selections. Used as soft consensus by sportsbooks for pricing draft-position O/Us. ESPN, NFL.com, PFF, CBS, RotoWire, Fanspeak, and StickToTheModel each publish mocks; aggregating 5+ mocks usually beats any single mock for prop edges.
Model (Betting Model): Custom algorithm that projects game outcomes. Can be simple spreadsheet or ML model. Edge comes from data + inputs sportsbooks underweight.
MVP / Award Futures: Bets on individual player awards (MVP, ROY, DPOY, CY Young). Narrative-driven, often overreactive. Fade mid-season hype for better prices.
N
NCPG: National Council on Problem Gambling. 1-800-GAMBLER, 24/7 confidential hotline + text line. Your first call if gambling is a problem.
No-Sweat Bet: Book promo: lose your first bet, get stake back as bonus bets. Value is 35-50% of advertised amount depending on terms.
No-Vig Price (Fair Odds): The true probability-implied price with sportsbook juice stripped out. Use a devigger to find it. Compare your line to no-vig for EV.
NRFI (No Runs First Inning): MLB prop: no run scored in the 1st inning. YRFI = at least one run. Popular daily prop market.
O
Outs Recorded: MLB pitcher prop: total outs. Proxy for innings pitched. Manager trust + pitch count limit = cap.
P
Pace of Play: NBA/NFL: possessions per game. High pace = more scoring opportunities = higher totals. Check opponent pace too.
Pari-Mutuel: Horse/greyhound betting pool where payouts are determined by final pool totals, not fixed odds. Track takes a % before payout.
Passing Yards Prop: NFL QB prop: over/under pass yards. Key numbers: 250, 275, 300. Weather/pace inputs drive the line.
Percentage Betting: Staking a fixed % of current bankroll on each bet. Compounds wins faster, recovers from losses slower. Popular with pros.
PGA Tour Futures: Bet player to win tournament (outright), top 5, top 10, top 20, or make the cut. Outright odds = +800 to +20000 typical.
Pick Six: Horse bet: pick winner of 6 consecutive races. Pool rolls over if nobody wins. Jackpot can reach millions.
Pinnacle: Asian sharp book. No limits on winners. Lowest vig in the industry (1-2%). Unavailable in US. The gold standard for true prices.
Pivot Point: A number in the line where EV changes meaningfully. Crossing from +3 to +2.5 is a pivot in the NFL.
Player Props: Bets on individual player stat lines (points, yards, strikeouts). Weaker markets than game lines = more beatable.
Playoff Garbage Time: Less frequent than regular season because playoff rotations stay tight until late. Backdoor covers still happen when the leading team pulls starters up 15 or more with 3 minutes left. Live total unders carry edge once both benches are in; live spreads on the trailing team do not (bench lineups do not scale the margin).
Playoff Whistle: Refs swallow marginal fouls deeper into the playoffs. Round 1 free-throw rate drops 6 to 9 percent vs regular season league-wide. Live unders on team total points and free-throw O/Us carry edge in Games 3 to 7, especially with star-driven teams that farm fouls.
Points Prop: NBA/NHL prop: over/under points (scoring points in NBA, total points in NHL). Most liquid prop market.
Positional Run (NFL Draft): When 3+ teams reach for the same position in a tight window (e.g. 4 OTs in picks 5-12). Triggers cascading drops on the next-best player at that position. Useful for bet-on-second-CB-off-the-board props once the first CB is gone.
Power Rating: Numeric strength grade for each team. Used to project lines. Public power ratings: Sagarin, Massey, FPI.
Pregame: Bets placed before the opening tip/kickoff/first pitch. Most volume happens pregame. Sharper markets at close.
PrizePicks: Pick-em DFS operator. Pick 2-6 player props over/under, higher payout per correct pick. Popular entry point for beginners.
Promo / Promotion: Any book offer that adds value. Deposit match, odds boosts, no-sweat bets, profit boosts. Promo abuse is a legitimate edge for new users.
Promo Abuse (Bonus Hunting): Legitimate +EV strategy: systematically claim every sportsbook bonus, deposit match, and risk-free bet. Expected hourly: $50-$200 for first 3 months.
Prop Bet: A bet on a specific player/game stat, not the final outcome. Example: "Mahomes Over 285.5 passing yards." Player props are a growing market.
Public Bettors (The Public): Casual bettors. Typically bet favorites, overs, and popular teams. Fading the public is profitable in select spots, not always.
Puck Line (NHL): NHL spread equivalent: -1.5 or +1.5 goals. Favorite must win by 2+. Underdog wins or loses by 1. Popular alt to ML.
Q
QB Slide: A quarterback prospect falling below their consensus mock range on Draft night. The most traded slide market is the first-QB-off-the-board prop: when the public QB1 drops out of the top-5, books reprice downstream team-QB props in seconds. A sliding QB is a common trade-up catalyst; the Jets-Jaguars QB1 chase in 2023 is the canonical example. Edge sits in the gap between the slide starting and the book rewriting adjacent team-needs-QB props.
Quarter Bet: Bet on a single quarter spread/total. Higher variance. Line-makers spend less effort on quarters = soft market.
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Reach (NFL Draft): Player taken 1+ rounds earlier than consensus board. Reaches on need (LT, CB1, QB) are predictable from team draft tiers; reaches on traits are not. Reach picks blow up positional-run props for the rest of the round.
Rebounds Prop: NBA prop: over/under rebounds. Positional data (C vs G) matters. Pace and opponent defensive rebound rate are key.
Reduced Juice: Sportsbooks offering -105 instead of -110 on standard lines. Cuts vig from 4.55% to 2.38%. Default +EV book choice for volume bettors.
Referee Impact: NBA/Soccer: specific refs have different styles (loose vs tight). Check ref historicals for O/U totals and foul props.
Regression to the Mean: Hot streaks and cold streaks both regress over time. 80% weeks don't continue. Fade extreme hot streaks in player props.
Regular Season Markets: All stats props scoped to regular season only (unless stated). Postseason = separate market, different pricing.
Regulated (US): State-licensed sportsbook. Your funds are segregated + protected. Complaints go to state gaming commissions. Pays tax correctly.
Rest Advantage: Days off before game. NBA back-to-backs drop win% by 3-5 points. NFL short week (Thursday) favors home team by ~1 point.
Risk-Free Bet (Second-Chance): If your first bet loses, book refunds up to $X in free bets/site credit. Value is ~30-50% of advertised amount. Always +EV if bet sized right.
ROI Variance: Even good bettors have losing months. 52%-55% win rate doesnt mean winning every week. Drawdowns of 10-15 units are normal.
Rolling Parlay: Same as ladder. Stake initial amount, roll winnings into next leg until you cash or bust.
Run Line (MLB): MLB spread equivalent: -1.5 or +1.5 runs. Favorite must win by 2+. Tight games = run line hits the dog.
Rushing Yards Prop: NFL RB prop: over/under rush yards. Injury to teammates drives volume upward. Check workload reports.
S
Sack Prop: NFL defensive prop: will player X record a sack. Extremely variance-heavy, rarely +EV.
Same Game: Parlay across multiple markets from ONE game (SGP). Books compound vig. Correlations (QB passing yards + WR receiving yards from same team) reduce payout further.
Same-Day Parlay: Multi-game parlay across same day slate. DK/FD push boosts often land on same-day parlays to move volume.
Sample Size: Number of bets needed before results mean something. 500 bets minimum to judge a model. 1000+ for real confidence.
Saves Prop: NHL/Soccer goalie prop: total saves. SOG faced x save % = projection. Good backups in starter's absence = sharp play.
Scamdicapper: A fake capper selling picks with no real edge, doctored results, or private Discord shilling. Verified track records matter.
Scheduled Rest / Load Management: NBA stars sitting healthy for rest. Usually telegraphed 24-48 hours out via ESPN reporters. Sharpen at drop.
Season Win Total: Over/under on total games a team wins in a season. NFL is 17 games max. Injuries, schedule, and coaching changes drive the line.
Selling Points: Moving the spread against you at better odds. Rare but worth considering on teasers/alt lines with strong models.
Series Futures: Umbrella term for any futures tied to a single playoff series: series winner, series length, exact series score (4-0, 4-1, 4-2, 4-3), and correct winner plus games combos. Exact-score buckets pay 4x to 10x the straight series price.
Series Length: Futures market on how many games a best-of-7 series runs (4, 5, 6, or 7). 4-0 and 4-3 carry the longest odds, 4-2 is historically the modal outcome in Round 1. Sharp spot when the 7-seed has a rim-protector that forces Game 6 or Game 7.
Series Price: The moneyline on a team to win an entire playoff series, not a single game. Celtics -450 means risk $450 to win $100 on Boston taking the series. Juice is higher than single-game ML because the book is pricing 4 to 7 games of uncertainty.
Set Betting (Tennis): Exact-score bet on set wins (2-0, 2-1 in WTA; 3-0, 3-1, 3-2 in ATP majors). Highest payout among tennis markets.
SGP (Same Game Parlay): A parlay where all legs are from the same game. Popular but correlated legs compound the vig even more than regular parlays.
SGP Parlay: Same as SGP. Same Game Parlay combining multiple correlated props from one game. Book's juice is compounded heavily.
SGP+ (Same Game Parlay Plus): Cross-game parlay with at least one SGP leg included. Newer market (2023+). More correlated = higher vig built in.
Sharp Action: Volume from pros. Moves lines even at low ticket count because of size. Follow sharp books (Pinnacle, Circa) to see it.
Sharp Book: Pro-focused book. Lower vig, higher limits, takes size. Examples: Pinnacle (offshore), Circa (Vegas), some prop boutiques.
Shots on Target (Soccer): Prop: total shots forcing the keeper to save. Better proxy for goal threat than shots total. 3-4 per team average.
Shots Prop: NHL/Soccer prop: total shots taken. More reliable than goals (no goalie variance). Sharps love high-SOG games.
Slate: The full card of games for the day/weekend. "Sunday slate" = all NFL games that day. DFS uses slate terminology too.
Sleeper: Fantasy app that added DFS. Strong in season-long leagues, growing in DFS. Unique drafted pools.
Soft Book: Recreational-focused book. Square lines, square limits, limits winners fast. Best for promos but not volume. Examples: DK, FD, MGM.
SOG (Shots on Goal): NHL prop: total shots on goal in a game. High-variance prop with weak markets = beatable.
Square Action: Betting volume from recreational players. Books price lines to attract square action on the wrong side.
Standard Deviation: Stat measure of how much ROI swings. Higher stddev = bigger bankroll needed. Parlays have huge stddev; flat ML bets have low stddev.
Starting Lineup: Confirmed starters. Late scratches in NBA (10pm ET) and MLB (first pitch) move lines 1-3 points.
State Launch: Date a new state goes live with online sports betting. First 30 days = promo gold rush. Most states: DK + FD go first.
Stop Loss: Preset daily/weekly loss limit. When hit, stop betting. Critical for discipline and responsible gambling.
Strength of Schedule (SOS): Quality of opponents faced/remaining. Harder SOS = worse stats. Adjust player props and team totals accordingly.
Strikeouts Prop: MLB pitcher prop: total Ks. Opposing lineup K% + pitcher L/R splits drive it. Weather (wind in) increases Ks.
Superfecta: Horse bet: pick 1st-4th in exact order. High variance, high payout. Box = 24x cost.
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Team Position of First Pick (Prop): Bet on the position group (QB / OL / DL / Skill / Defensive Back) of a specific team's first selection. Cleanest when a team has clear top-2 needs and 1-2 likely BPA scenarios. Often correlated with positional-run timing in that range.
Team Total: Over/under points scored by ONE team (not both). Useful when you like one side but not the other in a total.
Teaser Ties: NFL 6-point teaser: 3 to 9 crosses 3 and 7, key numbers. Wong teasers (favorites -7.5 to -8.5, dogs +1.5 to +2.5) historically +EV at specific books.
Threes Made Prop: NBA prop: 3-pointers made by a player. High variance. Volume shooters (Curry, Dame) = safer unders on bad nights.
Thunder / Props Cash: Secondary DFS-pickem operators. Weaker markets, beatable in some cases but watch for payout terms.
Tilt: Emotional decision-making after a loss. Chasing, doubling up, betting teams you don't usually bet. The #1 killer of bankrolls.
To Qualify (Soccer Cup): Two-legged tie: which team advances? Includes away-goal rule + extra time + penalties. Priced differently than 90-min ML.
Top-10 Lock: A Draft prospect whose consensus mock position is inside the top-10 across every public board (PFF, Jeremiah, Brugler, ESPN, Miller). Books price Top-10 Lock props around -400 or tighter; the edge is not the favorite side but the rare fade when late-process leaks (medical re-check, interview flag, character report) move the market without moving the consensus mocks. Wait for book movement before the mocks catch up.
Total Games (Tennis): Over/under total games played in the match. Heavy serve players + grass = overs. Clay + baseliners = unders.
Trade Down (NFL Draft): Team moves back from their slot to accumulate picks. Books rarely price specific trade-down team props but offer total Round 1 trade count O/U (typically 5.5 to 7.5). Trade-down activity by elite GMs (Belichick / Roseman / Veach historically) shifts every prop at picks 10-25.
Trade Up (NFL Draft): Team moves up by sending future picks (often a 1st or two 2nds) to a team behind them. Markets exist on will-there-be-a-Round-1-trade-up (Yes is the historical norm, 90%+ of recent drafts) and on which teams will trade. Trade activity skews positional-run timing earlier.
Trifecta: Horse bet: pick 1st, 2nd, and 3rd in exact order. Box it for all 6 orderings at 6x cost.
U
Underdog Fantasy: DFS operator with Pick-em and Best Ball formats. Known for early-market props (often softer than traditional books).
Unit Size: The dollar amount of 1 unit. Keep it between 1-3% of bankroll for flat betting. Adjust using Kelly for high-edge plays.
Unregulated / Offshore: Non-licensed books (Bovada, BetOnline, MyBookie). No legal recourse if they dont pay. Crypto deposits common. Higher risk.
V
Value Pick (NFL Draft): Player who slides 1+ rounds below consensus board. Often drives same-team-multiple-position-of-need bets in the next round. Sharp money tracks these on the late-Day-1 / early-Day-2 fade.
VPN Detection: Books ban accounts caught using VPN to fake location. Real bans, seized funds, permanent. Do not VPN.
W
Weather Impact: Outdoor NFL/MLB games. Wind 15+ mph = unders. Rain = unders + rushing overs. Hot dome openers = unders early season.
Whale: A very high-volume bettor. Casinos love whales because variance on their play smooths. Distinct from sharps (whales can be -EV).