Call EV Positive Checker
Compute caller heads-up call EV with exclusive win/tie probabilities, split tied pot and final-pot rake; current decision cost relative to fold, no future betting/side pots or promised outcome.
Description
A call EV compares expected returned pot share with the call cost.
A call EV compares expected returned pot share with the call cost. A tie contributes half of the declared distributable pot.1
Enter nonnegative pre-call pot, positive call, win/tie probabilities 0–1 summing≤1, and rake 0–final pot. Return signed EV, strict-positive flag and zero fold EV.
When to use Call EV Positive Checker
Use Call EV Positive Checker when you need to evaluate the supplied records under the calculation and evidence rules below. No multiway tie shares, side pots, future betting or equity estimation is included.
Prepare the supplied game state, observations and explicit variant settings. Follow the card, board, coordinate and state conventions in the calculation rules.
How to use Call EV Positive Checker and understand its results
- Prepare the supplied game state, observations and explicit variant settings. Follow the card, board, coordinate and state conventions in the calculation rules.
- Enter potImmediatelyBeforeCall, amountToCall, callerWinProbability, callerTieProbability, callerNetPotRake using the field table and calculation rules, then run the tool.
- Read netCallEv, positiveCallEv, netFoldEvBaseline. The explanation below defines the units, signs, ordering and any flags or placeholder values.
- If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.
| Input field | Meaning | Value type; see rules below | Requirement |
|---|---|---|---|
| potImmediatelyBeforeCall | Pot immediately before call | number | Required |
| amountToCall | Amount to call | number | Required |
| callerWinProbability | Caller win probability | number | Required |
| callerTieProbability | Caller tie probability | number | Required |
| callerNetPotRake | Caller net pot rake | number | Required |
Enter nonnegative pre-call pot, positive call, win/tie probabilities 0–1 summing≤1, and rake 0–final pot. Return signed EV, strict-positive flag and zero fold EV.
EV=(winProbability+tieProbability/2)×(preCallPot+call−rake)−call Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.
| Output field | Meaning | Value type |
|---|---|---|
| netCallEv | Net call ev | number |
| positiveCallEv | Positive call ev | boolean |
| netFoldEvBaseline | Net fold ev baseline | number |
{
"input": {
"potImmediatelyBeforeCall": 150,
"amountToCall": 50,
"callerWinProbability": 0.4,
"callerTieProbability": 0.1,
"callerNetPotRake": 0
},
"output": {
"netCallEv": 40,
"positiveCallEv": true,
"netFoldEvBaseline": 0
}
}Limitations and assumptions
No multiway tie shares, side pots, future betting or equity estimation is included.
Numeric inputs, where present, must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors. A successfully returned false flag is an evaluated outcome; its meaning is explained above.
Alternative or Complementary methods
Use Pot Odds Percent Calculator: Calling a poker bet adds the call amount to the final pot. Break-even equity compares that cost with the resulting pot. For a complementary task, use Poker Outs Rule of 2 and 4: An outs model counts drawing at least one favorable card without replacement. Common 2%/4% rules are approximations.
References
-
Call EV Positive Checker — tool.io
Similar or alternative tools
- Pot Odds Percent Calculator
Calling a poker bet adds the call amount to the final pot. Break-even equity compares that cost with the resulting pot.
- Poker Outs Rule of 2 and 4
An outs model counts drawing at least one favorable card without replacement. Common 2%/4% rules are approximations.