ROI Calc
Betting ROI from staked, returned and bet count.
How to Use This Calculator
- Enter the total amount you’ve wagered (every stake added up)
- Enter the total amount returned (winning payouts, stakes included)
- (Optional) Add the number of bets placed to unlock per-bet metrics
- Read off profit, ROI %, and your per-bet stats
Formula
Net Profit = Total Returned − Total Wagered
ROI = Net Profit / Total Wagered × 100%
Average Stake = Total Wagered / Number of Bets
Profit per Bet = Net Profit / Number of Bets
Sustained ROIs above 5-10% are typical of strong sports bettors over 1000+ bets; anything above 20% on a small sample is usually variance, not skill.
Frequently Asked Questions
What counts as a good ROI in sports betting?
Pro bettors typically chase a long-term ROI of 5-10%. Clearing 3% over a big sample (5000+ bets) is exceptional. Sharps often run thinner at 2-3% on heavy volume, while winning recreational bettors land at 5-15% on smaller volume but with more variance.
How does ROI differ from yield?
In betting, yield is just another word for ROI. Both express profit as a percentage of total wagered, so the terms swap freely — yield dominates in horse racing and European betting, ROI in US sports betting and matched betting.
Why does sample size matter so much?
Over the short term, variance — not skill — drives ROI. A 20% ROI across 50 bets is basically noise; random swings produce that with ease. Separating skill from luck usually takes 1000+ bets with steady staking and odds before ROI reflects your real edge.
Should I break ROI down by sport, market, or bet type?
Absolutely — track every segment on its own. A single ROI number can mask the fact that you’re crushing NHL totals while hemorrhaging on NBA spreads. Granular tracking is the bedrock of any long-term improvement loop.