Specialty Sports Calculators

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.

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.

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.

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.

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.

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.

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.