Accumulator / Parlay
A single bet combining multiple selections — all must win, odds multiply, and so does the bookmaker's margin.
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Glossary Category: Sports Betting
Sportsbook terminology: odds, margins, bet types, trading and the betting product stack.
Arbitrage Betting
Exploiting price disagreements between books to guarantee profit by covering all outcomes at favorable combined odds.
Bet Builder / Same-Game Parlay
Combining multiple markets from one event into a single priced ticket — the industry's flagship high-margin product.
Betting Exchange
A peer-to-peer marketplace matching backers against layers, charging commission instead of building margin into odds.
Cash Out
Settling a bet early at the book's live valuation — locking profit or cutting loss before the event finishes.
Early Payout
Promotional settlement before the result is final — e.g., paying winners once a team leads by two goals.
Esports Betting
Wagering on competitive video games — a young vertical with data, integrity and audience profiles unlike traditional sport.
Free Bet
A promotional stake whose winnings (usually minus the stake) are paid in cash — sports betting's core bonus currency.
Futures
Long-horizon bets on season outcomes — champions, awards, totals — settled months after placement.
Handicap / Spread
Adjusting the contest by a virtual margin — favorites give points, underdogs receive them — to balance a lopsided matchup into a…
Handle
Total stakes accepted over a period — the volume metric of sports betting, before any results.
Hold (Sportsbook)
Revenue as a percentage of handle — the sportsbook's realized margin after results, fluctuating around its structural overround.
Implied Betting Probability
Implied betting probability converts quoted odds into the probability associated with the payout price before any adjustment for bookmaker margin. It is…
In-Play / Live Betting
Wagering during the event at continuously repriced odds — the format that now dominates sports betting volume.
Liability
The amount at risk on an outcome — a layer's exposure on an exchange, or the book's aggregate payout risk on a…
Matched Betting
Extracting promotional value by covering all outcomes — back the bonus at the book, lay it at an exchange, keep the difference.
Moneyline
A bet on who wins outright, priced in American plus/minus notation — the simplest wager in the book.
Odds
The price of a bet — expressing both implied probability and payout, quoted in decimal, fractional or American formats.
Odds Boost
A promotionally enhanced price on selected outcomes — margin given back to look generous, usually with stake caps.
Over/Under (Totals)
Betting whether combined scoring lands above or below the book's posted line — team-agnostic and parlay-fuel.
Overround / Vig
The bookmaker's margin baked into odds — implied probabilities summing above 100%, the sports equivalent of house edge.
Palpable Error
An obvious pricing or settlement mistake — the clause letting books void bets placed on clearly wrong odds.
Prop Bet
A wager on an in-game particular — player yards, first scorer, cards shown — rather than the result.
Recreational Player
The casual majority betting for entertainment — favorites, parlays, brand loyalty, and the revenue core of every book.
Risk Management / Trading
The sportsbook function pricing markets, managing exposure, and deciding who may bet how much.
Settlement
Grading and paying bets after results — the accuracy-and-speed function bettors judge books by.
Sharp Bettor
A consistently skilled bettor whose action beats closing prices — valuable as information, unwelcome as a customer at most books.
Sportsbook
The operator (or product vertical) accepting wagers on sporting events at posted odds.
Stake Factoring / Limits
Individually restricting how much specific customers may stake — the bookmaker's per-player risk dial.
Virtual Sports
RNG-driven simulated sporting events — sports aesthetics wrapped around slot mathematics, running around the clock.
Void Bet
A cancelled bet with stakes returned — triggered by abandonments, non-runners, rule-defined circumstances, or errors.