Specialty Tools
Forecast Bet Tool
Horse racing forecast (exacta) payouts from your two horses' odds and stake.
Over/Under Tool
Payouts for totals markets from the line, both prices and your stake.
Teaser Bet Tool
US teaser payouts for points moved (6, 6.5, 7, 10, 13) across your selections.
Tricast Bet Tool
Horse racing tricast (trifecta) payouts for three horses finishing 1st, 2nd and 3rd.
Asian Handicap Tool
Settle Asian handicap bets from the handicap, odds and final score.
Bonus Bet Tool
See the guaranteed profit you can pull from free and bonus bets, and the best lay odds.
Lay Bet Tool
Lay stake, liability and profit for exchange bets — find the lay that matches your back.
Matched Betting Tool
Best lay stakes for matched betting on qualifying bets and free bets (SNR and SR).
Poisson Tool
Predict scorelines and outcomes from each team's expected goals using the Poisson model.
Tools for scenarios standard calculators can’t handle: matched betting, bonus conversion and Asian handicaps.
Matched betting
Pair a back bet at a bookmaker with a lay at an exchange to cover all outcomes and pull guaranteed cash from a promotion. Watch three numbers: the small qualifying loss, the free-bet conversion rate (usually 70-85%), and the net profit.
Asian handicaps
Asian lines remove the draw with goal handicaps. Quarter lines (-0.25, -0.75) split your stake across two adjacent lines, so you can half-win or half-lose; the calculator resolves exactly what each scoreline pays.
Frequently Asked Questions
What is matched betting?
Matched betting is a strategy that uses bookmaker free bets and promotions to generate guaranteed profit. It works by placing a qualifying bet with a bookmaker (to unlock a free bet) and then laying the same outcome at a betting exchange to eliminate risk. When the free bet is awarded, you repeat the process — back with the free bet, lay at the exchange — to extract a guaranteed profit from the free bet value.
Is matched betting risk-free?
When done correctly, matched betting is mathematically risk-free because every bet is covered. However, there are practical risks: human error (placing the wrong bet), odds changing between placing back and lay bets, and bookmakers limiting or closing your account if they detect matched betting patterns. Following a systematic approach and double-checking every bet minimizes these risks.
What is a free bet (bonus bet) and how do I convert it to cash?
A free bet or bonus bet is a promotional offer from a bookmaker that lets you place a bet without risking your own money. If the free bet wins, you typically receive only the profit (not the stake). To convert it to cash, place the free bet on a high-odds selection and lay the same outcome at a betting exchange. Our calculator determines the optimal odds and lay stake to maximize your cash extraction, typically 70-80% of the free bet value.
What are Asian handicap bets?
Asian handicaps eliminate the draw outcome by applying a goal handicap to one team. A -0.5 handicap means the team must win outright. A -1.0 handicap means they must win by 2 or more goals. Quarter handicaps (e.g. -0.75) split your stake between two adjacent handicaps. Asian handicaps offer only two outcomes (win or lose), which typically results in better odds and lower bookmaker margins compared to traditional three-way markets.
What are quarter Asian handicaps?
Quarter handicaps (e.g. -0.25, -0.75, +1.25) split your bet equally between two whole or half handicaps. A -0.75 handicap splits your stake between -0.5 and -1.0. If the team wins by exactly 1 goal, you win the -0.5 portion and push (get your stake back) on the -1.0 portion, so you win half and draw half. This creates partial win/loss scenarios that are unique to Asian handicap betting.
How does a betting exchange work?
A betting exchange lets you bet against other bettors instead of against a bookmaker. You can either back (bet for an outcome to happen) or lay (bet against an outcome). The exchange takes a small commission on winnings (typically 2-5%). Exchanges are essential for matched betting because they allow you to lay bets. The most well-known exchanges are Betfair, Smarkets, and Betdaq.
What percentage of a free bet can I convert to cash?
Typically 70-85% of the free bet value can be converted to cash, depending on the odds available and the exchange commission rate. Higher odds on the back bet (free bet) result in a higher conversion rate but also require a larger lay liability at the exchange. Our calculator finds the optimal balance, showing you the exact lay stake needed and the guaranteed profit for any odds combination.