Free calculator
Breakeven Win Rate Calculator
Win more than 52.4% of these and you profit. Anything less is a slow loss, however good the record looks.
How to use it
Change any input and the results update immediately. The values are also written into the address bar, so you can bookmark a calculation or paste the link to someone else and they will see exactly the same numbers.
Everything here computes with the same functions that produce the grades inside WeBall, so a number on this page will never contradict a number on a bet card.
What the term means
The percentage of bets you must win at a given price just to avoid losing money.
At −110, the standard price on spreads and totals, breakeven is 52.4%. At −105 it drops to 51.2%; at +100 it is exactly 50%.
Full definition of breakeven win rate →
Learn the math behind it
A calculator is faster than doing this by hand, but knowing why the formula works is what lets you spot when a number is wrong. Read the full guide →