Bet regret index
Calculate EV lost from indecision or stake size hesitation
Quantify the cost of indecision — the difference between the bet you made and the bet you wish you'd made.
Why regret math matters
Every bettor has the same recurring nightmare: 'I should have bet bigger / I should have taken the early odds / I almost backed it but chickened out.' This calculator quantifies that pain. Enter what you bet vs what you wanted, see the EV gap. Over time, patterns emerge — you start making decisions before doubt creeps in. Combine with our CLV calculator to verify your instinct vs the market, and Value Bet finder to identify the true value moment.
See also: Closing Line Value, Value bet finder, ROI tracker
How to use
- 1Enter the bet you actually placed (stake and odds).
- 2Enter the bet you wish you'd placed.
- 3Enter the final result.
- 4See the EV gap and actual profit difference.
Example: hesitated on a winner
You bet €20 at 3.00 and won — €40 profit. But you originally wanted €100 at 3.00. Regret = €200 - €40 = €160 of profit you talked yourself out of. Multiply by 50 hesitations a year and you're losing €8000 in EV to indecision alone. The fix: pre-commit stake size before checking odds.
When to use
- After any bet where you hesitated on stake size
- Tracking how often you scale down winners
- Self-improvement and conviction-building
Frequently asked questions
What is the Bet regret index calculator?
Every bettor has the same recurring nightmare: 'I should have bet bigger / I should have taken the early odds / I almost backed it but chickened out.' This calculator quantifies that pain. Enter what you bet vs what you wanted, see the EV gap.
How does the Bet regret index calculator work in practice?
You bet €20 at 3.00 and won — €40 profit. But you originally wanted €100 at 3.00. Regret = €200 - €40 = €160 of profit you talked yourself out of. Multiply by 50 hesitations a year and you're losing €8000 in EV to indecision alone. The fix: pre-commit stake size before checking odds.
When should I use the Bet regret index calculator?
After any bet where you hesitated on stake size. Tracking how often you scale down winners. Self-improvement and conviction-building.