Calculate your true return on investment from sports betting. Enter your totals — get instant profit, ROI, and performance analysis.
Enter the total number of bets you placed, the total amount staked across all those bets, and the total money returned (including stakes on winning bets). The calculator instantly computes your return on investment.
With fewer than 200–300 bets, your ROI is dominated by luck, not skill. A bettor can be up 20% after 50 bets purely by variance, only to regress to the mean over 1,000 bets. Use this calculator to track your ROI as your sample grows.
ROI (%) = (Total Returns − Total Staked) ÷ Total Staked × 100
For example: Staked £1,000, received £1,080 back → ROI = (1080 − 1000) / 1000 × 100 = +8%
A positive ROI in sports betting is rare — even 3–5% long-term ROI is considered excellent. Most recreational bettors have a negative ROI of −5% to −15%. Professional bettors typically achieve 3–10% ROI over very large sample sizes (thousands of bets).
Betting ROI = (Total Returns − Total Staked) ÷ Total Staked × 100. If you staked $1,000 and received $1,050 back in total returns, your ROI is (1050 − 1000) / 1000 × 100 = 5%. "Returns" means all money received back, including the stake on winning bets.
In sports betting, ROI and yield are often used interchangeably. Both equal profit ÷ total staked × 100. The term "yield" is more common in UK/European betting markets, while "ROI" is standard in North America. The calculation is identical.
Statistical significance in betting typically requires at least 500–1,000 bets. With fewer bets, your ROI figure is heavily influenced by variance. Consider your result preliminary until you have at least 300 bets, and treat it as directionally meaningful after 500+.
For the most accurate ROI: include void bets (they return your stake, so count the stake in "staked" and the returned stake in "returns"). For each-way bets, include the full stake and the full return received. The calculator works with your total figures regardless of bet type.
In 2026, one of the biggest mistakes bettors make is judging a strategy only by short-term ROI. Add a note to compare your bet price to the market’s closing line on every wager. If you consistently beat the close—like taking +110 when the line closes -105—you likely have real edge even during a losing month. If your ROI looks good but your closing-line value is negative, results may be variance-driven. Logging CLV alongside stake, odds, and result makes this calculator far more useful.