Measure additional value from a river bet. Free, no account. See the formula, assumptions and editable inputs.
A positive figure measures the modelled gain from betting instead of checking, rather than the value of the whole pot. Assumes hands that fold would lose to you at showdown, your equity versus callers stays fixed, no raises and no later betting. If those conditions fail, this simplified comparison is unsuitable.
The example inputs below are hypothetical. Change them to inspect your own study scenario. When testing a larger bet, reconsider the calling range instead of assuming the same hands continue.
Estimates for study and planning only, not a profit promise. Overshove tracks your real sample so these inputs come from your own data.
Treat the calculator as a planning tool, not a verdict on one session. A live poker input is usually an estimate: your win rate is noisy, your standard deviation changes by game type, and your future volume rarely matches the clean number you type into a form. The useful habit is to save the assumptions beside the result so you know what would need to change before the decision changes.
If the result pushes against what you wanted to do, do not smooth the inputs until the answer feels nicer. Make the conservative version first, using a lower win rate, a higher swing rate or fewer weekly hours. Then run the optimistic version. The space between those answers is the real decision area: where a shot needs a stop rule, where a move up needs more buy-ins, or where a good-looking hourly still needs a bigger sample.
Overshove calculators become more useful when the inputs come from your own logged sessions. Rake, tips, travel, hours, stake mix and session length all change the number. A generic benchmark can teach the shape of the problem, but a clean personal log gives the number you should actually act on.
Incremental EV versus checking to showdown = call frequency × bet × (2 × equity - 1).
It runs in your browser for free with no account. The result is a study calculation under the stated assumptions, not a recommendation to play or a promise of winnings.