Sports Betting

Calculate Your Sports Betting ROI

Built by Kevin Glover · @gloverbuilds · Verified formula

Track your betting performance. Calculate ROI, units won, and whether you are actually profitable long-term.

📅 Updated April 2026 ✅ Formula verified 📖 4 min read 🆓 Free · No sign-up

In this article

What Is Betting ROI?
Sample Size Matters

Ihr ROI

ROI = (Nettogewinn ÷ Gesamteinsatz) × 100. 10.000 € gesetzt, 500 € Gewinn: ROI = 5%. Profis streben 3-7%. Positiver ROI macht Sie besser als 95% aller Wetter.

Referenzen

Freizeitwetter: -5% bis -15%. Informiert: -2% bis +2%. Semi-Pro: +2% bis +5%. Pro: +3% bis +7%.

⚡ CalcWolf Insight

The most successful bettors are not the best at picking winners — they are the best at finding value. A 55% win rate at -110 odds (7.3% ROI) is far more profitable than a 60% win rate at -200 odds (0% ROI). The relationship between win rate and odds determines profitability, not win rate alone.

Frequently asked questions

Welcher ROI ist gut?▾

Jeder positive ROI ist besser als 95% der Wetter. 3-5% ist professionell.

Wie verbessern?▾

1) Bessere Auswahl. 2) Niedrigere Marge (Quoten vergleichen). 3) Volumen bei Valuewetten.

✓ Math logic verified against primary sources → See our verification process

Kevin Glover · @gloverbuilds

Founder, CalcWolf · GLVTS · Blickr

All formulas sourced from primary references — IRS publications, peer-reviewed research, and official standards. Results are tested against independent reference calculators before publishing. Rates and brackets updated when official sources change. Editorial policy →