Plain-English definitions for every betting market — Asian Handicap, Draw No Bet, Win to Nil, Over/Under, Correct Score and more. Each entry includes worked numeric examples, when to use the market, common mistakes, and how our AI model applies it.
18 terms
The most common football betting market. You predict one of three outcomes: Home win (1), Draw (X), or Away win (2). The bet settles at full-time using the 90-minute result only — extra time and penalties do not count.
Read more →Asian Handicap (AH) is a betting market that eliminates the draw by assigning a virtual goal advantage or disadvantage to each team before the match begins. The favoured team starts with a negative handicap (e.g. -1.0) and must win by more than that margin; the underdog receives a positive handicap (e.g. +1.0) and wins the bet even if they draw or lose narrowly. Asian Handicaps use quarter-goal increments (0.0, 0.25, 0.5, 0.75, 1.0, 1.25, 1.5…), so stakes are often split across two adjacent lines, which means partial refunds are possible on exact-margin results.
Read more →A yes/no market on whether both teams will score at least one goal each during the 90-minute match. A BTTS Yes bet wins if the final score is 1-1 or higher (both teams on the scoresheet). BTTS No wins only if one or both teams keep a clean sheet.
Read more →A market on the total number of goals scored by both teams in a match. The most common line is 2.5 goals. Over 2.5 wins if 3 or more goals are scored; Under 2.5 wins if 2 or fewer goals are scored. Other common lines are 1.5 and 3.5.
Read more →A market that lets you cover two of the three possible 1X2 outcomes in a single bet. The three double chance combinations are: Home or Draw (1X), Away or Draw (X2), and Home or Away (12). Because you cover two outcomes, odds are lower than single 1X2 bets but the probability of winning is higher.
Read more →A high-variance market where you predict the exact final score of a match at full-time. Because exact scorelines are rare events, correct score odds are much higher than 1X2 or goals markets — but the probability of winning any specific bet is correspondingly lower.
Read more →Draw No Bet (DNB) removes the draw from a match, leaving two possible outcomes for your bet: the team you backed wins (your bet wins), or the other team wins (your bet loses). If the match ends in a draw, your stake is returned in full — no profit, no loss. This makes DNB a lower-risk alternative to a standard 1X2 win bet when you are confident in one side but the draw represents meaningful risk. DNB offers lower odds than a straight win bet but significantly better odds than Double Chance, sitting neatly between the two in both risk and reward.
Read more →Win to Nil (WTN), also called Clean Sheet Win or Win to Zero, is a compound market that requires two simultaneous outcomes: the selected team must win the match and must not concede a single goal. Both conditions must be met at full-time (90 minutes). Even a last-minute consolation goal for the losing team, with no impact on the match result, is enough to lose a Win to Nil bet. Because the conditions are more restrictive than a simple win bet, Win to Nil odds are higher — typically 40–60% greater than the equivalent 1X2 win price. The market is most viable for strong home favourites facing weak attacks.
Read more →Expected Goals (xG) is a metric that quantifies the quality of a shot by estimating the probability it results in a goal, based on historical data from similar shots. An xG of 1.0 means that shot, from that position and angle, scores on average once in every attempt. Summing all xG values in a match gives the total expected goals — a truer measure of attacking performance than raw scorelines.
Read more →A mathematical formula that determines the optimal fraction of your bankroll to bet in order to maximise the long-term growth rate of your capital. The Kelly Criterion accounts for both the size of your edge and the uncertainty of the outcome. Betting more than the Kelly amount increases variance without increasing long-term returns.
Read more →A betting approach based on finding and backing outcomes where your estimated probability of the event occurring is higher than the probability implied by the bookmaker's odds. If you consistently bet with positive expected value, you will profit over a large enough sample regardless of short-term variance.
Read more →The discipline of allocating a dedicated betting fund and sizing each bet as a percentage of that fund to avoid ruin and maximise long-term growth. Good bankroll management means you can survive losing streaks without going broke, and that your bet sizes grow proportionally as your bankroll increases.
Read more →Bookmaker odds encode an implicit probability estimate for each outcome. Converting odds to implied probability reveals what the bookmaker believes the true chance of each outcome is — including their profit margin (overround). Understanding implied probability is essential for identifying value bets.
Read more →Betting edge is the percentage difference between your estimated probability of an outcome and the probability implied by the bookmaker's odds. A positive edge means you have identified a bet where the true probability is higher than what the bookmaker is pricing. Edge is the foundation of every profitable bet.
Read more →The AI Advisor is CalibrSports's proprietary system that independently double-checks every bet flagged by the ML model before it is published. It adds contextual intelligence — breaking news, injury updates, odds movements, and league track record — on top of statistical edge to produce higher-quality, better-calibrated picks.
Read more →Confidence badges are the colored labels attached to every CalibrSports pick that communicate the source, conviction level, and AI advisor decision behind each bet. There are five badge types: POWER PICK (green, composite 50+), MODEL PICK (blue, composite 38-50), OPTIMIZED (amber), SCOUT PICK (blue), and LONGSHOT (yellow).
Read more →In-Game Tracking is CalibrSports's live match monitoring system that updates win probabilities every 5 minutes during matches. It combines pre-match ML predictions with real-time data — current score, minute elapsed, red cards, and recent momentum — to show how the probability of each outcome evolves as the game unfolds.
Read more →Hedge betting is the practice of placing a second bet on the opposing outcome to an active bet, in order to reduce risk or guarantee a profit regardless of the final result. In sports betting, hedging is most powerful when your original bet's odds have moved significantly in your favour during a match.
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