What is ROI (Return on Investment)?
The percentage profit relative to total amount wagered — the primary measure of betting profitability.
Definition
ROI in sports betting = (total profit / total amount wagered) × 100. A 5% ROI over 500+ bets is strong; 10%+ is elite. ROI removes the distortion of varying stake sizes and lets you compare profitability across different periods or strategies. Variance matters: a 500-bet sample gives statistical significance, but a 50-bet sample is noise. Track ROI separately by sport, league, market type and bookmaker to identify where your real edge lies. A positive ROI over fewer than 200 bets could simply be luck — don't raise stakes until the sample is large.
Example
500 bets, £50 average stake = £25,000 wagered. Final profit £1,750. ROI = (1,750 / 25,000) × 100 = 7%. Solid long-term edge confirmed.
Related terms
More from this category: Strategies & Edge
FAQ
What does "ROI (Return on Investment)" mean in sports betting?
The percentage profit relative to total amount wagered — the primary measure of betting profitability.
How is "ROI (Return on Investment)" used at the FIFA World Cup 2026?
ROI (Return on Investment) applies to every World Cup 2026 match in the same way as any other regulated sports event. Fan Bet Odds tracks the relevant prices and lines across Bet365, Pinnacle, DraftKings, BetMGM and other licensed bookmakers — see the match prediction and odds pages for live application.
Where can I see "ROI (Return on Investment)" in action on Fan Bet Odds?
ROI (Return on Investment) appears throughout our match prediction pages (/odds/predictions/match/[slug]), market deep-dives (/odds/predictions/match/[slug]/[market]) and bookmaker reviews (/bet/bookmakers/[slug]). Use the related terms below to navigate the broader glossary.
World Cup 2026 - Daily Odds & Tips
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