Calculator
Required Win Rate Calculator
Estimate the win percentage required to reach a selected ROI at constant average American odds and one-unit risk.
Formula used
Required win rate = (1 + target ROI as a decimal) / average decimal odds.
Worked example
At -110 average odds, a 5.00% target ROI requires an estimated 55.00% win rate.
When this calculator helps
Use this calculator to see how a target ROI changes the win rate required at one constant average price. It can show why the break-even rate is not enough when the goal is a positive return.
The tool is descriptive. It does not estimate whether a person can achieve the required rate and should not be treated as a forecast.
Understanding the result
The formula solves the expected-return equation for win rate. It shows how the price paid changes the win percentage needed for a chosen return target.
At a fixed price, a higher target ROI requires a higher win rate. At less favorable negative odds, the required rate rises because each win earns less relative to one unit risked. A result above 100% means the selected target is impossible under the entered constant-price assumptions.
Real records can contain pushes, varied prices, and changing stakes. For those records, calculate each outcome or use the complete PickProof ledger instead of applying one average-price threshold without qualification.
Before relying on the output
- Average price represents the full measured sample
- Target ROI entered as a percentage
- Pushes and variable staking disclosed separately
Common mistakes
- Using the offered price for only the winning picks instead of the whole sample average.
- Assuming the calculated threshold predicts future performance.
- Ignoring pushes, changing stakes, or materially varied prices.
Limitations
- The model assumes every graded decision has the same average price and risk.
- Pushes and variable staking require a fuller record model.
- A required rate above 100% means the target is not attainable under the entered constant-price assumptions.
Frequently asked questions
Why is this higher than break-even?
A positive target ROI requires a higher win rate than zero-return break-even at the same average price.
Can the result exceed 100%?
Yes. That indicates the selected ROI target cannot be achieved under the stated constant-price model.
Related PickProof resources
Track the complete record
Use PickProof to record confirmed picks, preserve verification receipts, and review units, ROI, and eligible public history from the underlying pick ledger. Read the methodology to see how the product separates immutable confirmation, grading, and closing data.
Open PickProofThese calculators are informational recordkeeping tools. They do not place wagers, accept deposits, pay winnings, provide betting credits, or guarantee performance. Odds, scores, grading, line movement, CLV, ROI, and records may be delayed, incomplete, corrected, or unavailable. Verify independently before using information outside PickProof.