ROI Sports Calculator
Work out your ROI from staked, returned and bet count.
How to Use This Calculator
- Enter the total amount you’ve wagered (all your stakes added up)
- Enter the total amount returned (winning payouts, stakes included)
- (Optional) Add the number of bets placed to unlock per-bet metrics
- Check out your profit, ROI %, and 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 usually aim for a long-term ROI of 5-10%. Anything over 3% across a big sample (5000+ bets) is considered exceptional. Sharps often run thinner (2-3%) on huge volume, while recreational winners land at 5-15% with smaller volume but more variance.
Is ROI the same thing as yield?
Yep, yield is just another name for ROI in betting. Both show profit as a percentage of total wagered. They’re interchangeable, though yield gets used more in horse racing and European betting, and ROI more in US sports betting and matched betting.
Why does sample size matter so much?
Over the short term, ROI is driven by variance, not skill. A 20% ROI across 50 bets barely means anything, since random swings can do that easily. To tell skill from luck you generally need 1000+ bets with steady staking and odds before ROI reflects your real edge.
Should I track ROI by sport, market, or bet type?
Definitely, track each one on its own. A single total ROI can hide the fact that you’re winning on NHL totals but leaking money on NBA spreads. Breaking it down is the basis for getting better at long-term betting.