--- title: "Pot Odds Facing a Pot-Size Bet" url: "https://georgelipoker.com/pot-odds/pot-size.md" canonical_url: "https://georgelipoker.com/pot-odds/pot-size" last_updated: "2026-10-23" type: "reference" summary: "Pot odds against a pot-size bet: 33.33% equity, 2 : 1. A $100 example and the outs you need on the flop and turn." related: ["https://georgelipoker.com/pot-odds.md"] --- # Pot Odds Facing a Pot-Size Bet Pot odds against a pot-size bet: 33.33% equity, 2 : 1. A $100 example and the outs you need on the flop and turn. Behind a pot-size bet you pay $100 to reach a pot of $300, so the call is right only when you win more than 33.33% of the time. Each section turns 33.33% into something you can use at the table: dollars, draws, outs and implied odds. - Equity a call needs: 33.33% (against a pot-size bet) - Pot odds: 2 : 1 (for every 1 you call) - Bet on a $100 pot: $100 (the full pot) - Pot after your call: $300 (you put in $100) ## The price of a pot-size bet A price of 33.33% sits in the middle of the range, so draws are a close call and the exact count of outs decides. - e = f / (1 + 2f) - f = 1 - e = 1 / (1 + 2 x 1) = 33.33% - Pot odds = (1 + 1) / 1 = 2 : 1 Turn the percent into odds and you get 2 : 1. The bigger the first number, the cheaper the call. ## A $100 pot facing a pot-size bet The pot is $100 and your opponent puts in $100. You are now asked to match $100 to see the next card. - Pot before the bet: $100 - Opponent bets: $100 - You call: $100 - Pot after your call: $300 - You risk: $100 - You can win: $200 - Equity needed: 33.33% Add your $100 and the pot reaches $300. The price of 33.33% is simply your call as a share of that total. ## Which draws can call a pot-size bet Every row shows how a draw stacks up against a pot-size bet. Take the chance to hit, subtract 33.33%, and the sign tells you the call. Common draws against a pot-size bet, which needs 33.33% | Draw | Outs | Flop: hit by the river | Flop margin | Flop verdict | Turn: hit on the river | Turn margin | Turn verdict | | --- | --- | --- | --- | --- | --- | --- | --- | | [A pocket pair that wants a set](https://georgelipoker.com/outs/2-outs-flop.md) | 2 | 8.42% | -24.92 points | Fold | 4.35% | -28.99 points | Fold | | [One overcard to top pair](https://georgelipoker.com/outs/3-outs-flop.md) | 3 | 12.49% | -20.84 points | Fold | 6.52% | -26.81 points | Fold | | [A gutshot straight draw](https://georgelipoker.com/outs/4-outs-flop.md) | 4 | 16.47% | -16.87 points | Fold | 8.70% | -24.64 points | Fold | | [Two overcards](https://georgelipoker.com/outs/6-outs-flop.md) | 6 | 24.14% | -9.19 points | Fold | 13.04% | -20.29 points | Fold | | [An open-ended straight draw](https://georgelipoker.com/outs/8-outs-flop.md) | 8 | 31.45% | -1.88 points | Fold | 17.39% | -15.94 points | Fold | | [A flush draw](https://georgelipoker.com/outs/9-outs-flop.md) | 9 | 34.97% | +1.63 points | Call | 19.57% | -13.77 points | Fold | | [A flush draw with a gutshot](https://georgelipoker.com/outs/12-outs-flop.md) | 12 | 44.96% | +11.63 points | Call | 26.09% | -7.25 points | Fold | | [A flush draw with an open-ended straight draw](https://georgelipoker.com/outs/15-outs-flop.md) | 15 | 54.12% | +20.78 points | Call | 32.61% | -0.72 points | Fold | You can continue from the flop with 3 of the 8 draws, and a flush draw is the first on the list that qualifies. Not one draw beats 33.33% on the turn. A flush draw with an open-ended straight draw, the best of the eight with 15 outs, hits 32.61%. ## Implied odds against a pot-size bet Future bets can lower the price. The rule is C / (T + W), where C is your call of $100, T is $300, and W is what you expect to win later. The equity a call needs against a pot-size bet as future winnings W grow | Future winnings W | Pot after call plus W | Equity needed | Change from the plain price | Flush draw margin from the flop | | --- | --- | --- | --- | --- | | $0 | $300 | 33.33% | 0.00 points | +1.63 points | | $50 | $350 | 28.57% | -4.76 points | +6.40 points | | $100 | $400 | 25.00% | -8.33 points | +9.97 points | | $250 | $550 | 18.18% | -15.15 points | +16.79 points | | $500 | $800 | 12.50% | -20.83 points | +22.47 points | At $500 of future winnings the price falls from 33.33% to 12.50%, a drop of 20.83 points. Nine outs on the turn mean 19.57%, below 33.33%. Closing the gap takes $211.11 of winnings still to come. Implied odds change the answer when your hand is close to 33.33% and your opponent is likely to pay you off. A draw far below 33.33% gains little from them. Reverse implied odds are why some draws that look like calls at 33.33% should be folded: the cards that complete them do not always win. ## Pot-size next to the other sizes Step down to a three-quarter-pot bet and the price falls to 30.00%, which is 3.33 points lower than 33.33%. Compared with 1.25x-pot, this bet is 2.38 points cheaper to call: 33.33% against 35.71%. - [Pot odds facing a three-quarter-pot bet](https://georgelipoker.com/pot-odds/three-quarter-pot.md): Needs 30.00%, 3.33 points less. - [Pot odds facing a 1.25x-pot bet](https://georgelipoker.com/pot-odds/1-25x-pot.md): Needs 35.71%, 2.38 points more. ## The outs that justify a call To call a pot-size bet on the flop, hold 9 outs or more. The chance to hit by the river is 34.97% at that count. Once the turn card is out, you need 16 outs to call. That is 34.78%, compared with 32.61% one out lower. - [9 outs on the flop](https://georgelipoker.com/outs/9-outs-flop.md): 34.97% by the river against 33.33%. - [16 outs on the turn](https://georgelipoker.com/outs/16-outs-turn.md): 34.78% on the river against 33.33%. To check a particular hand, open a call-or-fold page for this bet size; the draw and the price are already set. - [Flush draw on the flop against a pot-size bet](https://georgelipoker.com/call-or-fold/9-outs-flop-vs-pot-size.md): 9 outs, 34.97% to hit, against 33.33%. ## Questions ### What equity do you need to call a pot-size bet? Against a bet of the full pot you need 33.33%. The math is f / (1 + 2f) with f = 1, and it matches the dollar check: $100 over $300. Anything above 33.33% equity makes the call profitable. ### How many outs do you need against a pot-size bet? The line is 9 outs on the flop, where you hit 34.97% by the river. On the turn you need 16 outs. Fewer outs than that fall below 33.33%, so the call needs help from implied odds. ### How much do implied odds help against a pot-size bet? They can swing a close call. Going from 33.33% with no future winnings to 12.50% with $500 is a change of 20.83 points, so a draw that is just short may become a call when stacks are deep. ### Can you call a pot-size bet with a flush draw? Nine outs is the usual count for a flush draw. On the flop its chance to hit by the river is 34.97%, which is above 33.33%, so it is a call. On the turn the chance is 19.57%, which is below 33.33%, so it is a fold. The decision can move with implied odds, so look at the stacks. ## How this is computed This page works out the equity a call needs when a $100 pot faces a bet of the full pot, and it compares that price with the chance to hit common draws on the flop and on the turn. The price comes from a single line of algebra, e = f / (1 + 2f). With f = 1 it returns 33.33%, and flipping it into odds gives 2 : 1. Nothing is added for future bets, and a hit is taken to win the entire pot. The deck is counted as 47 unseen cards on the flop and 46 on the turn, each equally likely to come. Method: the closed form f / (1 + 2f) computed by the GeorgeLiPoker math library, with draw chances counted from the unseen cards. ## Related pages - [Pot odds calculator](https://georgelipoker.com/tools/pot-odds-calculator.md) - [Outs calculator](https://georgelipoker.com/tools/outs-calculator.md) - [Pot odds by bet size](https://georgelipoker.com/pot-odds.md) - [Facing a three-quarter-pot bet](https://georgelipoker.com/pot-odds/three-quarter-pot.md) - [Facing a 1.25x-pot bet](https://georgelipoker.com/pot-odds/1-25x-pot.md) - [Hand against hand equity](https://georgelipoker.com/equity.md) ## Related - [Pot Odds by Bet Size](https://georgelipoker.com/pot-odds.md)