--- title: "Call or Fold: 13 Outs vs 2/3 pot, Flop" url: "https://georgelipoker.com/call-or-fold/13-outs-flop-vs-two-thirds-pot.md" canonical_url: "https://georgelipoker.com/call-or-fold/13-outs-flop-vs-two-thirds-pot" last_updated: "2026-10-21" type: "reference" summary: "With 13 outs on the flop you hit 48.10%; a two-thirds-pot bet needs 28.57%. The math says call." related: ["https://georgelipoker.com/call-or-fold.md"] --- # Call or Fold: 13 Outs vs 2/3 pot, Flop With 13 outs on the flop you hit 48.10%; a two-thirds-pot bet needs 28.57%. The math says call. On the flop, 13 outs are enough to call a two-thirds-pot bet. The price is 28.57% and the chance is 48.10%. - Verdict: Call (13 outs, flop, two-thirds-pot bet) - Chance to hit by the river: 48.10% (two cards to come) - Equity the call needs: 28.57% ($66.67 into a pot of $233.33) - Margin over the price: +19.53 points (your chance minus the price) ## What the numbers say Your draw is priced at 28.57% and it arrives 48.10% of the time. A lead of 19.53 points is wide enough that the call stands even if the numbers shift a little. 13 out of 47 unseen cards is a combined count rather than one named draw, and one card hits 27.66% of the time. ## A $100 pot, step by step - Starting pot: $100 - Bet: $66.67 - You call: $66.67 - Total pot after calling: $233.33 - Gain on a hit: $166.67 - Loss on a miss: $66.67 - Chance to hit by the river: 48.10% - Expected value of calling: +$45.58 - Price of the call: 28.57% - Your chance minus the price, unrounded: +19.5322 points - Outs that exactly reach the price: 7.20 outs - Margin measured in outs: +5.80 outs Over many identical spots, with the whole pot won on every hit, the call lost on every miss and no extra betting, calling gains $45.58 on average. Hits bring in $80.17, misses cost $34.60, and the ratio is +0.684 per dollar called. Read as odds: 1.08 : 1 against you, 2.5 : 1 from the pot. Do not forget your own call. Dividing the bet by the pot without it gives 40.00%, not 28.57%, and would show a margin of +8.1036 points. The bet over the starting pot, 66.67%, is worse and would show -18.5631 points. ## Where the call would flip The fewest outs that still call a two-thirds-pot bet on the flop is 8. You hold 13, so you have 5 outs to spare before the call flips to a fold. Price of a two-thirds-pot call if you give money back after a hit, 13 outs on the flop | Given back later | Price with it | Your chance minus price | Value of the call | Call? | | --- | --- | --- | --- | --- | | $0 | 28.57% | +19.53 points | +$45.58 | Call | | $10 | 29.85% | +18.25 points | +$40.76 | Call | | $25 | 32.00% | +16.10 points | +$33.55 | Call | | $50 | 36.36% | +11.74 points | +$21.52 | Call | | $100 | 50.00% | -1.90 points | -$2.53 | Fold | Your margin is worth $94.74 in later losses. Past that, 1.42 times your call, folding would have been better. ## Two views of the same draw 13 outs against a two-thirds-pot bet, one view per row | Cards counted | Chance | Margin over price | Value of the call | Verdict | | --- | --- | --- | --- | --- | | By the river, two cards | 48.10% | +19.5322 points | +$45.58 | Call | | Next card only | 27.66% | -0.9119 points | -$2.13 | Fold | Here the cards to come matter. Two cards reach 48.10% and point to a call; one card reaches 27.66% and points to a fold. Which one applies depends on whether the turn brings another bet. ## Counts close to yours One out can change the answer, so the table lists the counts on either side of 13. Each out adds roughly 3.05 points against the 28.57% price. Outs 11 to 15 on the flop against a two-thirds-pot bet | Outs | By the river | Margin | Verdict | | --- | --- | --- | --- | | [11 outs](https://georgelipoker.com/call-or-fold/11-outs-flop-vs-two-thirds-pot.md) | 41.72% | +13.15 points | Call | | [12 outs](https://georgelipoker.com/call-or-fold/12-outs-flop-vs-two-thirds-pot.md) | 44.96% | +16.39 points | Call | | 13 outs, this page | 48.10% | +19.53 points | Call | | [14 outs](https://georgelipoker.com/call-or-fold/14-outs-flop-vs-two-thirds-pot.md) | 51.16% | +22.58 points | Call | | [15 outs](https://georgelipoker.com/call-or-fold/15-outs-flop-vs-two-thirds-pot.md) | 54.12% | +25.55 points | Call | ## How bet size moves the answer How much does bet size matter? The price climbs from 16.67% to 44.44% across the list, while 13 outs stay at 48.10%. 13 outs on the flop against every bet size | Bet size | Equity needed | Margin | Verdict | | --- | --- | --- | --- | | quarter-pot | 16.67% | +31.44 points | Call | | [third-pot](https://georgelipoker.com/call-or-fold/13-outs-flop-vs-third-pot.md) | 20.00% | +28.10 points | Call | | two-fifths-pot | 22.22% | +25.88 points | Call | | [half-pot](https://georgelipoker.com/call-or-fold/13-outs-flop-vs-half-pot.md) | 25.00% | +23.10 points | Call | | two-thirds-pot, this page | 28.57% | +19.53 points | Call | | [three-quarter-pot](https://georgelipoker.com/call-or-fold/13-outs-flop-vs-three-quarter-pot.md) | 30.00% | +18.10 points | Call | | [pot-size](https://georgelipoker.com/call-or-fold/13-outs-flop-vs-pot-size.md) | 33.33% | +14.77 points | Call | | 1.25x-pot | 35.71% | +12.39 points | Call | | 1.5x-pot | 37.50% | +10.60 points | Call | | 2x-pot | 40.00% | +8.10 points | Call | | 3x-pot | 42.86% | +5.25 points | Call | | 4x-pot | 44.44% | +3.66 points | Call | Your 48.10% chance tops every price in the table, so every bet size is a call: the largest price, 44.44%, is still below it. ## Next pages to read - [13 outs on the flop](https://georgelipoker.com/outs/13-outs-flop.md) - [Pot odds for a two-thirds-pot bet](https://georgelipoker.com/pot-odds/two-thirds-pot.md) - [Pot odds calculator](https://georgelipoker.com/tools/pot-odds-calculator.md) - [Outs calculator](https://georgelipoker.com/tools/outs-calculator.md) - [Call or fold with a draw](https://georgelipoker.com/call-or-fold.md) ## Questions ### Does the math favor calling a two-thirds-pot bet with 13 outs on the flop? The answer is a call, with a margin of +19.53 points. 13 outs on the flop reach 48.10%; a bet of $66.67 into $100 needs 28.57%. Win the whole pot on a hit and lose the call on a miss, and the call is worth +$45.58 on average. ### How many outs are enough to continue against a bet of two thirds of the pot on the flop? A call starts to work at 8 outs: 31.45% to hit versus 28.57% needed. One out fewer drops the chance to 27.84%. You hold 13, which is 5 more than the minimum. ### Which hit chance fits a two-thirds-pot bet on the flop? Both figures are right for their own situation. 48.10% fits a hand with no more betting, 27.66% fits one where the turn brings a bet, and 28.57% is the price for each, giving a call and a fold. ## How this is computed Counting is exact: the pairs of unseen cards with no out number 561 out of 1,081, so hitting by the river has chance 48.10%. Four assumptions sit behind the verdict: you call the full bet, a hit wins the entire pot, no money goes in after the call, and every one of the 47 unseen cards is equally likely. The price is $66.67 / $233.33 = 28.57%. No card is taken out for what an opponent might hold. Computed from the closed form by the GeorgeLiPoker math library. ## Related pages - [13 outs on the flop](https://georgelipoker.com/outs/13-outs-flop.md) - [Pot odds for a two-thirds-pot bet](https://georgelipoker.com/pot-odds/two-thirds-pot.md) - [Pot odds calculator](https://georgelipoker.com/tools/pot-odds-calculator.md) - [Outs calculator](https://georgelipoker.com/tools/outs-calculator.md) - [Call or fold with a draw](https://georgelipoker.com/call-or-fold.md) ## Related - [Call or Fold With a Draw by Bet Size](https://georgelipoker.com/call-or-fold.md)