Sports betting has its own language. This glossary covers the essential terms you will encounter across all betting markets, from beginner basics to advanced concepts.
A-D
Accumulator (Acca) — A bet combining four or more selections. All must win. Odds multiply together for potentially large returns.
Ante-Post — A bet placed before the day of an event. No refund if your selection does not run.
Asian Handicap — A handicap system that eliminates the draw by using quarter and half-goal lines, originating from Asian betting markets.
Bankroll — Your total betting budget. Professional bettors manage their bankroll carefully to survive losing streaks.
Bet Builder — A tool allowing multiple selections from the same match to be combined into one bet.
BTTS (Both Teams to Score) — A market where both teams must score for the bet to win.
Cash Out — A feature allowing you to settle a bet before the event finishes, locking in a profit or limiting a loss.
Dead Heat — When two or more competitors tie for a position. Payouts are divided by the number sharing the place.
Double — A bet combining two selections. Both must win.
E-L
Each-Way (E/W) — Two bets: one to win and one to place. Costs double the stake. The place part pays a fraction of the win odds.
Edge — Your advantage over the bookmaker. A positive edge means you expect to profit long-term.
Expected Value (EV) — The average profit or loss per bet over time. Positive EV bets are profitable in the long run.
Fixed Odds — Odds that are guaranteed at the time of bet placement, regardless of subsequent market movements.
Fractional Odds — UK format (e.g., 5/1). The first number is your profit relative to the second number staked.
Handicap — An advantage or disadvantage applied to a selection to level the playing field.
In-Play (Live Betting) — Betting on events while they are happening, with odds updating in real time.
Lay Bet — Betting against an outcome on a betting exchange. You act as the bookmaker.
Liability — In exchange betting, the amount you stand to lose if the selection wins when you lay.
M-R
Margin (Overround) — The bookmaker's built-in profit. Calculated as the sum of implied probabilities minus 100%.
Nap — A tipster's strongest selection of the day.
Odds-On — Odds shorter than evens (less than 2.00 decimal). You risk more than you stand to win.
Patent — Seven bets covering three selections: three singles, three doubles, and one treble.
Place — Finishing in the specified positions (usually top 2-4 depending on the race or event).
Push — When the result exactly matches the handicap line. Your stake is returned.
Return — Your total payout including your original stake.
Rule 4 — A deduction applied to winning horse racing bets when a runner is withdrawn late.
S-Z
Single — A bet on one selection. The simplest and most common bet type.
SP (Starting Price) — The official odds at the time a race begins, as determined by on-course bookmakers.
Stake — The amount of money you place on a bet.
Treble — A bet combining three selections. All must win.
Value — When the odds are higher than the true probability warrants. The core concept of profitable betting.
Void — A bet that is cancelled, with the stake returned. Can occur due to non-runners, postponements, or rule violations.
This glossary covers the most essential terms. As you gain experience, these definitions will become second nature and you will find yourself thinking about betting in terms of value, expected value, and edge rather than simply winners and losers.