How to Calculate dollar ROI in Sports Betting (Formula and Examples)

When asked “what’s your ROI?” the average bettor responds with monthly profit. Wrong.

ROI isn’t absolute profit — it’s profit relative to volume bet.

The correct formula

ROI (%) = (Net profit / Total volume wagered) × 100

Where: - Net profit = Total won - Total lost (across all bets) - Total volume wagered = Sum of all stakes (regardless of result)

Practical example

You made 100 bets of $500 each. Total volume: $50,000. - Winning bets: 53 - Losing bets: 47 - Total net profit: $2,500

ROI = (2,500 / 50,000) × 100 = 5%.

The common mistake

Bettor looks at absolute profit ($2,500) and says “I made 5% on my bankroll.”

No. You made 5% on the volume wagered. If your bankroll was $30,000, the return on bankroll is $2,500 / $30,000 = 8.3% — different metric.

Professional benchmarks

Important: 30% ROI in a month is normal due to variance. Sustainable in 12 months is virtually impossible at dollar volume.

How to measure ROI by segment

Aggregate ROI is useful, but segment ROI shows where you really win.

By market

• 1X2: ROI +2%
• Asian Handicap: ROI +5%
• Corners: ROI +8%
• Cards: ROI -2%

Insight: abandon cards. Focus on corners.

By league

• Premier League: ROI +1%
• Champions: ROI +3%
• Bundesliga: ROI +6%
• MLS: ROI -3%

Insight: your edge is in European soccer. Stop betting MLS.

By game type

• Heavy favorites (1.30 or less): ROI -8%
• Balanced (1.80-2.50): ROI +6%
• Underdogs (3.00+): ROI -2%

Insight: operate only on balanced games.

How to improve your ROI

Stage 1 — Diagnosis

Calculate ROI by segment (market, league, type). Identify where you lose.

Stage 2 — Eliminate losers

Stop betting in segments with historical negative ROI.

Stage 3 — Concentrate on winners

Increase volume in segments where you have +5% ROI or more.

Stage 4 — Optimize stake

Use Fractional Kelly instead of fixed stake. Bigger stakes on high-edge bets increases ROI.

Stage 5 — Move to sharp-friendly book

Bonuses, cashback, and absence of limitation improve ROI by 1-3 percentage points.

CTA — Next step

Winn understands ROI: - Bet history exportable in CSV — feeds your spreadsheet automatically - Lifetime 5% cashback that adds direct ROI on every bet - High limits allowing volume scaling without sacrificing ROI - No moving odds after you bet (some books drop odds for profitable bettors)

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Join VIP Waitlist →

Winn

• ✓ Profits from week one
  ✓ dollar $50,000+ limits per bet
• ✓ Lifetime 5% cashback on every bet
• ✓ No limitation for positive ROI
• ✓ Dedicated WhatsApp manager
• ✓ Instant Withdrawal