What Is ROI in Sports Betting?

TL;DR: ROI (return on investment) is profit divided by the total amount you risked. It shows how hard your bankroll is working — a far better measure of skill than win rate or total profit.

Two bettors each profit $500. One did it risking $5,000; the other risking $50,000. They are not the same. ROI captures the difference: it's your net profit divided by everything you put at risk, expressed as a percentage.

How to calculate ROI

Add up every dollar you staked over a period, take your net profit, and divide. Risk $10,000 across the season and finish +$700, and your ROI is 7%. Simple, and brutally honest — it can't be inflated by betting more.

What is a good ROI?

Lower than most people expect. Professional sports bettors often live in the low single digits — a sustained 3–5% ROI over a large sample is genuinely excellent. Anyone promising huge percentages is selling a short hot streak, not a long-term reality.

Why ROI beats win rate

A high win rate can still lose money if you're paying bad prices, and a sub-50% record can profit if your prices are good — the whole reason win rate doesn't matter on its own. ROI rolls price and results into one number, which is exactly why we report it openly on our scoreboard. It's the scoreboard that's hardest to fake.

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