ROI in sports betting measures how much profit you're generating relative to the amount you bet. It's the most meaningful performance metric for serious bettors.
The Formula
ROI = (Total Profit / Total Amount Wagered) × 100
Example:
- Total wagered: $5,000
- Total returned: $5,300
- Profit: $300
- ROI = ($300 / $5,000) × 100 = 6%
What Good ROI Looks Like
- 0% ROI: Break even (common outcome for recreational bettors before juice)
- 2-4%: Solid recreational bettor who shops lines
- 5-8%: Sharp semi-professional level
- 10%+: Elite sharp bettor level (rare, hard to sustain at scale)
Most bettors are negative ROI once juice is factored in. The average recreational bettor loses 4-8% of wagered amount per year.
ROI vs. Win Rate
A 55% win rate sounds good but may be break-even or worse depending on the average odds. ROI accounts for the actual money won and lost, making it more meaningful.
A bettor going 60% on heavy favorites (-300) may have negative ROI. A bettor going 52% on spreads at -110 is profitable.
Why Track It
You can't improve what you don't measure. Monthly ROI tracking by sport and bet type shows you where your edge is real and where you're losing money.
[Your ROI is calculated automatically in Oddible →]
