NBA Betting Glossary for UK Punters: Every Term You Need to Know

Put the glossary to use in our NBA markets explained for beginners guide.

A–F

Accumulator (Acca) — A single bet combining multiple selections; all legs must win for the bet to pay out. The US equivalent is “parlay.” The more legs, the higher the potential return — and the lower the probability of winning.

Against the Spread (ATS) — A team’s record when measured against the point spread rather than outright wins and losses. A team with a 30–20 ATS record has covered the spread in 30 of 50 games.

American Odds — An odds format that uses positive and negative numbers. Positive numbers (e.g., +150) show the profit on a £100 stake; negative numbers (e.g., -150) show how much you need to stake to win £100. UK sportsbooks rarely display this format by default, but it appears in US-origin analysis.

Bankroll — The total amount of money a bettor has allocated specifically for gambling. Managing it properly is the difference between long-term profitability and going broke.

Bet Builder — A feature that lets you combine multiple selections from the same game into a single bet. The UK term for what Americans call a “same-game parlay.”

Blocks — A defensive stat: when a player deflects an opponent’s shot attempt. Blocks props carry the highest AI prediction win rate of any prop category at 69.9%.

Cash Out — An option to settle a bet early, before the event has concluded, at a price offered by the bookmaker. The cash-out value changes as the game progresses.

Closing Line — The final odds offered on a market before the game begins. Beating the closing line consistently is the best indicator of long-term betting profitability.

Decimal Odds — An odds format showing your total return per pound staked. Odds of 2.50 mean a £1 bet returns £2.50 (£1.50 profit plus your £1 stake). Most UK sportsbooks offer this as a display option alongside fractional odds.

Double Result — A bet on both the half-time and full-time results of a game.

Each Way — Not commonly applicable to NBA betting; primarily used in horse racing and golf.

Expected Value (EV) — The average profit or loss you can expect per bet over a large number of repetitions. A positive EV bet is one where the odds exceed the true probability of the outcome.

Fractional Odds — The traditional UK odds format. 5/1 means you win £5 for every £1 staked, plus your stake back. 1/5 means you must stake £5 to win £1.

G–N

Gross Gambling Yield (GGY) — The total amount retained by bookmakers after paying out winnings. The UK sports betting market generates approximately £2.48 billion in annual GGY.

Handicap — The UK term for what Americans call the “spread” or “point spread.” A handicap of -5.5 means the team must win by six or more points for the bet to succeed.

Implied Probability — The probability of an outcome as suggested by the odds. Calculated by dividing 1 by the decimal odds: odds of 2.00 imply a 50% probability.

In-Play (Live Betting) — Bets placed after a game has started. Odds update continuously based on the score, time remaining, and in-game events.

Juice — See “Vig.”

Line — The odds or point spread set by the bookmaker on a specific market. “The line is -4.5” means the favourite is giving 4.5 points.

Load Management — The practice of resting healthy players to prevent injury. Relevant to bettors because a star player sitting out changes the line on every market involving that game.

Margin (Overround) — The bookmaker’s built-in profit on a market. If the implied probabilities on all outcomes of a market add up to more than 100%, the excess is the margin.

Moneyline — A bet on which team will win outright, with no point spread applied. The UK equivalent is a “match result” or “straight win” bet.

NBA Cup — The league’s in-season tournament, introduced in 2023. Group-stage games count as regular-season results, and the knockout rounds are played on a neutral court.

O–Z

Over/Under (Totals) — A bet on whether the combined score of both teams will be above (over) or below (under) a line set by the bookmaker.

Parlay — The American term for an accumulator. A single bet combining multiple selections that all must win.

Player Prop — A bet on an individual player’s statistical performance: points, rebounds, assists, three-pointers, steals, blocks, or combinations thereof.

Point Spread — See “Handicap.”

PRA (Points + Rebounds + Assists) — A combined stat line used for prop bets. The bettor wagers on whether a player’s total across all three categories will exceed or fall below a set number.

Push — When the result lands exactly on the line (e.g., a team wins by exactly 5 when the spread is -5). The bet is void, and the stake is returned.

Same-Game Parlay (SGP) — See “Bet Builder.”

Sharp — A professional or highly informed bettor whose action moves lines. “Sharp money” refers to bets from these professionals.

Spread — See “Handicap.”

Steals — A defensive stat: when a player takes the ball from an opponent. Steals props hit at a 61.9% rate in AI prediction models.

Totals — See “Over/Under.”

UKGC (UK Gambling Commission) — The regulatory body that licenses and oversees gambling operators in the UK. Betting only with UKGC-licensed operators ensures regulatory protection.

Unit — A standardised bet size, usually 1–3% of your bankroll. Betting in units keeps your staking consistent regardless of your emotional state.

Usage Rate — The percentage of a team’s possessions a player uses while on the floor. A higher usage rate means more shot attempts and touches, which directly affects points prop lines.

Value Bet — A bet where the odds offered are higher than the true probability of the outcome. The foundation of profitable long-term betting.

Vig (Vigorish) — The bookmaker’s commission on a bet. Also called “juice” or “margin.” It is the reason the implied probabilities on both sides of a market add up to more than 100%.

For a walkthrough of how these terms apply in practice — from opening an account to placing your first bet — the beginner’s guide covers the full process step by step.

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