Player Prop Terminology: Touchdown Glossary

Prop Betting Lexicon: Absolute Definitions for ATTS and Acca Markets

Accumulator (Acca) — A single bet combining multiple selections, where all legs must win for the bet to pay out. The UK equivalent of the American “parlay.” Each selection’s odds multiply together, creating a larger potential payout but lower overall probability. Accumulators can include multiple touchdown scorer picks from different games.

Anytime Touchdown Scorer (ATTS) — A bet on a named player to score a touchdown at any point during the game, including overtime if applicable. The most popular touchdown prop market by handle — it generates more betting volume than any other player proposition market. The player must physically carry or catch the ball into the end zone; passing touchdowns credited to the quarterback do not count.

Bet Builder — A bookmaker tool that allows you to combine multiple selections from the same game into a single bet. UK bookmakers use this term for what American sportsbooks call a “same game parlay.” Bet builders can combine touchdown scorer picks with other markets like match result, total points, and player yardage props.

Decimal Odds — The standard odds format used by most UK bookmakers for NFL markets. Expressed as a single number (e.g., 2.50), which represents the total return per unit staked, including the stake. A £10 bet at 2.50 returns £25 total (£15 profit + £10 stake). To convert to implied probability: 1 / decimal odds.

First Touchdown Scorer — A bet on which player will score the first touchdown of the game. Higher odds than anytime TD bets because only one player can win. Typically pays between 6.00 and 20.00 depending on the player’s likelihood. High variance — long losing streaks are normal even with good selections.

Fractional Odds — The traditional UK odds format (e.g., 5/2), representing profit relative to stake. A £10 bet at 5/2 returns £35 total (£25 profit + £10 stake). Still used by some UK bookmakers alongside decimal format, particularly for horse racing, and occasionally displayed for NFL props.

Implied Probability — The probability of an outcome as suggested by the bookmaker’s odds. Calculated as 1 / decimal odds. Odds of 3.00 imply a 33.3% probability. The sum of implied probabilities for all outcomes in a market exceeds 100%, with the excess representing the bookmaker’s overround (margin).

Last Touchdown Scorer — A bet on which player will score the final touchdown of the game. Less commonly offered than first or anytime TD markets. Harder to predict because it depends heavily on late-game script and clock management. Garbage-time touchdowns by trailing teams can produce unexpected winners.

Multiple Touchdown Scorer (2+ TDs) — A bet on a player to score two or more touchdowns in a single game. Higher odds than anytime bets because the player must score multiple times. Available at most major UK bookmakers, typically for featured games or high-profile players.

Overround (Vig/Juice) — The bookmaker’s built-in margin on a market. If the true probabilities of all outcomes sum to 100%, the bookmaker’s implied probabilities sum to more than 100% — the excess is the overround. A market with 105% total implied probability has a 5% overround, meaning the bookmaker keeps approximately 5% of all money wagered regardless of the outcome.

Player Prop (Proposition Bet) — Any bet on an individual player’s performance rather than the game outcome. Touchdown scorer bets are the most popular category of player props. Other common props include passing yards, rushing yards, and receptions.

Same Game Parlay (SGP) — The American term for what UK bookmakers call a bet builder. A single bet combining multiple selections from one game. Some correlations between legs (e.g., a team scoring many points and their running back scoring a touchdown) can make certain SGP combinations more favourable than independent parlays.

Touchdown (TD) — Worth six points in American football, scored when a player carries or catches the ball across the opposing team’s goal line. The foundation of all touchdown betting markets.

Analytics and Strategy Terms

Closing Line Value (CLV) — The difference between the odds at which you placed your bet and the final odds at kickoff. Consistently achieving positive CLV is the strongest indicator of long-term betting profitability, because the closing line represents the market’s most informed price.

EPA (Expected Points Added) — A metric that measures the value of each play relative to league-average outcomes in the same situation. Defensive EPA allowed indicates how efficiently a team surrenders scoring opportunities. Higher EPA allowed correlates with more touchdown-scoring chances for opposing players.

Expected Value (EV) — The average profit or loss per bet over the long run. Positive EV means the odds are better than the true probability warrants; negative EV means the bookmaker has the edge. Calculated as: (Probability of Win x Profit) — (Probability of Loss x Stake).

Game Script — The projected flow of a game based on the spread and total. A team expected to trail will pass more and play at a faster pace; a team expected to lead will run more and control the clock. Game script influences which positions are most likely to score touchdowns.

Red Zone — The area between the opposing team’s 20-yard line and the goal line. Roughly 74% of all NFL touchdowns are scored from within the red zone. Red zone efficiency — both offensive and defensive — is the single most predictive factor for individual touchdown scoring probability.

Red Zone Plus/Minus — A composite metric comparing a team’s red zone efficiency to league average on both offence and defence. Teams with high red zone plus/minus figures score more touchdowns and allow fewer, making their games particularly useful hunting grounds for TD props.

Success Rate — The percentage of plays on which a team achieves a positive EPA outcome. Defensive success rate indicates how often a defence “wins” a play. Low defensive success rate correlates with sustained drives and more scoring opportunities for opposing offences.

UK-Specific Betting Terms

GamStop — The UK’s national self-exclusion scheme for online gambling. Allows you to exclude yourself from all UKGC-licensed operators for periods of six months to five years.

GGY (Gross Gambling Yield) — The total amount retained by gambling operators after paying out winnings. UK industry GGY reached £16.8 billion in 2024/25. Used as the standard measure of market size in UK gambling regulation.

Odds Boost — A temporary promotional enhancement of odds on a specific selection, offered by the bookmaker. Common for NFL games, particularly London fixtures and the Super Bowl. Odds boosts provide genuine value when the enhanced price exceeds fair probability.

Remote Gaming Duty — The tax UK-licensed operators pay on online gambling revenue. Increasing from 21% to 40% from April 2026, which will affect the odds available to punters as operators adjust margins.

UKGC (UK Gambling Commission) — The regulatory body overseeing all gambling in Great Britain. Licenses operators, enforces consumer protections, and conducts compliance actions. All bookmakers offering NFL TD props to UK customers must hold a UKGC licence.

This glossary covers the terms you’ll encounter most frequently in NFL touchdown betting from the UK. For a full introduction to how these concepts fit together in practice, the beginner’s guide to TD scorer betting walks through the fundamentals step by step.