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Reverse Implied Odds Calculator
Test a poker call after estimated reverse implied odds. Compare baseline EV with a scenario where apparent wins become second-best hands and cost more later.
Reverse implied odds calculator quick answer
This reverse implied odds calculator tests a specific poker call after you add a realistic second-best-hand risk and later-street loss. Enter the pot, call, baseline win chance, and future-loss assumptions. It compares direct pot-odds EV with the same scenario after those risks, but it does not replace range work or a solver.
- The current pot includes every chip already in the middle, including the bet you face, but not your own call.
- A baseline win chance should not already include the same second-best outcomes you add in the next field.
- The second-best share is a portion of apparent wins, not a percentage of every possible hand outcome.
- The calculator charges the current call once, then adds only later-street losses from the assumptions you enter.
- Rake, raises, stack depth, multiway ranges, and future folds remain outside this one-call scenario.
How to price reverse implied odds in a poker call
The glossary page explains what reverse implied odds mean. This calculator handles a narrower question: does one specific call still make money after you allow for the times an apparent win becomes a second-best hand and costs more on a later street? Keeping those jobs separate gives the glossary the definition query and gives this page a measurable calculator query.
Start with the direct price. If $100 is already in the pot and you call $25, the final pot is $125. A clean baseline model needs 20% win chance because $25 divided by $125 is 20%. That number does not say the call is good. It simply gives the price that your hand and range estimate must beat before future action enters the picture.
The difficult input is the baseline win chance. It is not a license to paste in a favorite draw percentage and call it solved. If a range calculation already includes the stronger flushes or better kickers that beat you, those outcomes are already losses. Set the overlapping second-best input to zero. The calculator is useful only when each loss is counted once.
PokerStars describes reverse implied odds as later-round money expected to be lost, subtracted from the pot when considering the price. Their pot-odds lesson uses weak aces, weaker flushes, and the bottom end of a straight as examples where a hand can improve yet remain unsafe to play for maximum value. The source does not supply a universal percentage, because the range and action decide it.
Run a cautious version and a more optimistic version. A non-nut draw against a player who continues only with strength may need a larger second-best assumption than the same draw against a wide, passive range. If the adjusted result changes sign between reasonable inputs, the next useful step is a hand review or range calculation rather than a confident label from a simplified tool.
This model stops at one call plus the extra losses you state. It does not know whether a turn check gives you a free card, whether a raise ends the hand, or how rake changes a thin cash-game spot. That limit is intentional. The result is a way to expose the future-loss assumption, not a substitute for the whole decision tree.
What the reverse implied odds inputs mean
Use the fields to describe one decision. The formula is exact for the values entered, while the hard part is making those values honest.
| Input | What to enter | Common double count to avoid |
|---|---|---|
| Current pot | All money in the middle before your call, including the opponent's bet. | Adding your own call to this field and again as the call amount. |
| Baseline win chance | Your estimated chance of winning before the RIO scenario discount. | Using an all-in equity result that already treats the same second-best hands as losses. |
| Second-best share | The share of baseline wins that turn into a beaten made hand or a painful payoff. | Treating it as a share of every hand outcome rather than the apparent wins. |
| Extra loss after second-best | Later-street money lost beyond the call you are making now. | Including the current call a second time. |
| Extra loss after a miss | Usually $0 if you can fold; use a number only for a credible future leak. | Guessing a penalty merely because the draw misses. |
Default reverse implied odds example
The default fields model a $25 call into a $100 pot. The numbers show how a small second-best risk changes a close decision.
| Assumption | Value | Model effect |
|---|---|---|
| Current pot | $100 | A $25 call creates a $125 final pot. |
| Call amount | $25 | Direct pot odds require 20.0% baseline win chance. |
| Baseline win chance | 19.0% | Baseline EV is -$1.25 before RIO assumptions. |
| Second-best share | 15.0% of apparent wins | Adjusted win chance becomes 16.2%. |
| Extra loss after second-best | $100 | Expected extra loss is $2.85 in the scenario. |
| Adjusted result | -$7.66 | The model needs 27.4% baseline win chance to break even with these assumptions. |
Sources and methodology
- PokerStars Learn: Pot Odds Explained: Explains direct pot odds and describes reverse implied odds with weak aces, weaker flushes, and low straights.
- PokerStars Learn: Poker Terms & Glossary: Defines reverse implied odds as future losses that are subtracted when evaluating the price of a call.
- PokerStars Learn: Dealing with C-Bets: Explains why implied odds depend on future payout and opponent action, not only the amount already in the pot.
Reverse Implied questions
What are reverse implied odds in poker?
Reverse implied odds are the money a hand can lose on later streets after it appears to improve. A weak ace can make top pair against a better ace; a small flush can complete against a higher flush. The glossary defines the term, while this calculator tests a stated call scenario.
How do you calculate reverse implied odds?
First calculate baseline EV from the final pot and your stated baseline win chance. Then reduce the apparent wins that become second-best hands, subtract their estimated later-street loss, and subtract any credible loss after a miss. The result is a scenario estimate, not an exact hand reading.
Should I enter my all-in equity as the baseline win chance?
Only if that equity has not already included the same second-best outcomes you are adding as a risk. A proper all-in equity calculation against a defined range already counts stronger flushes, kickers, and made hands. In that case, set the matching second-best assumption to zero rather than charging the outcome twice.
What is the difference between implied odds and reverse implied odds?
Implied odds estimate the extra money you may win after a draw arrives. Reverse implied odds estimate the extra money you may lose after the same type of draw or made hand proves second best. Both depend on position, ranges, stack depth, and later action rather than the pot alone.
Can reverse implied odds turn a positive pot-odds call into a fold?
Yes. A call can pass the direct pot-odds price but fail once likely later-street losses are included. That does not make every small flush draw or weak kicker a fold. It means the price needs a cautious range and action estimate, especially when the edge is thin.
Does the calculator include rake, raises, or stack depth?
No. It models one call plus the later-street loss amounts you enter. Rake, check-raises, exact stack-to-pot ratios, multiple opponents, and folds on later streets can move a close result. Treat a small positive output as a prompt to review the hand, not a command.
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