--- title: "Call or Fold: 15 Outs vs full pot, Flop" url: "https://georgelipoker.com/call-or-fold/15-outs-flop-vs-pot-size.md" canonical_url: "https://georgelipoker.com/call-or-fold/15-outs-flop-vs-pot-size" last_updated: "2026-10-21" type: "reference" summary: "15 outs on the flop hit 54.12% by the river. A pot-size bet needs 33.33%, so the verdict is call." related: ["https://georgelipoker.com/call-or-fold.md"] --- # Call or Fold: 15 Outs vs full pot, Flop 15 outs on the flop hit 54.12% by the river. A pot-size bet needs 33.33%, so the verdict is call. Your draw is priced fairly enough to call here: 54.12% to hit, 33.33% needed against a pot-size bet on the flop. - Verdict: Call (15 outs, flop, pot-size bet) - Chance to hit by the river: 54.12% (two cards to come) - Equity the call needs: 33.33% ($100 into a pot of $300) - Margin over the price: +20.78 points (your chance minus the price) ## Comparing the draw with the bet The price is 33.33% and your chance is 54.12%. You sit 20.78 points above the line, which is a wide gap, so you call. Holding a flush draw with an open-ended straight draw gives you exactly 15 outs, out of 47 unseen cards. One card hits 31.91% of the time. ## The $100 pot example - Starting pot: $100 - Size of the bet: $100 - Your call: $100 - Final pot if you call: $300 - Gain on a hit: $200 - You lose on a miss: $100 - Chance to hit by the river: 54.12% - Expected value of a call: +$62.35 - Equity the call needs: 33.33% - Exact margin over the price: +20.7832 points - Fractional outs at the price: 8.53 outs - Outs to spare, exactly: +6.47 outs If you win the whole pot on a hit and lose your call otherwise, with no more betting, calling gains $62.35 on average. Hits add $108.23 on average and misses cost $45.88 on average, or +0.623 per dollar called. Written as odds, the pot lays 2 : 1 while the draw is 0.85 : 1 against. Watch the pot you divide by. Leaving your call out turns 33.33% into 50.00%, and the margin into +4.1166 points. ## What could go wrong before the call flips Count how many outs the call needs: 9 reach the 33.33% price, and you have 15. That leaves 6 outs of slack. Price of a pot-size call if you give money back after a hit, 15 outs on the flop | Given back later | Price with it | Your chance minus price | Value of the call | Call? | | --- | --- | --- | --- | --- | | $0 | 33.33% | +20.78 points | +$62.35 | Call | | $10 | 34.48% | +19.63 points | +$56.94 | Call | | $25 | 36.36% | +17.75 points | +$48.82 | Call | | $50 | 40.00% | +14.12 points | +$35.29 | Call | | $100 | 50.00% | +4.12 points | +$8.23 | Call | Reverse implied odds are the risk here. A hit that costs you $115.21 later, 1.15 times your call, is where the call stops being worth it. ## Next card or river 15 outs against a pot-size bet, one view per row | Cards counted | Chance | Margin over price | Value of the call | Verdict | | --- | --- | --- | --- | --- | | By the river, two cards | 54.12% | +20.7832 points | +$62.35 | Call | | Next card only | 31.91% | -1.4184 points | -$4.26 | Fold | Watch the difference between one card and two. By the river you hold 54.12%, a call; on the next card alone you hold 31.91%, a fold. A bet on the turn tips you toward the smaller number. ## Neighbors of this draw A few outs either way, against a pot-size bet that needs 33.33%. The chance climbs about 2.87 points with each extra out. Outs 13 to 17 on the flop against a pot-size bet | Outs | By the river | Margin | Verdict | | --- | --- | --- | --- | | [13 outs](https://georgelipoker.com/call-or-fold/13-outs-flop-vs-pot-size.md) | 48.10% | +14.77 points | Call | | [14 outs](https://georgelipoker.com/call-or-fold/14-outs-flop-vs-pot-size.md) | 51.16% | +17.82 points | Call | | 15 outs, this page | 54.12% | +20.78 points | Call | | [16 outs](https://georgelipoker.com/call-or-fold/16-outs-flop-vs-pot-size.md) | 56.98% | +23.65 points | Call | | [17 outs](https://georgelipoker.com/call-or-fold/17-outs-flop-vs-pot-size.md) | 59.76% | +26.43 points | Call | ## The same draw against other bet sizes Bet size sets the price, so the verdict changes as you scan the table. The pot-size bet of this page is marked in the first column. 15 outs on the flop against every bet size | Bet size | Equity needed | Margin | Verdict | | --- | --- | --- | --- | | quarter-pot | 16.67% | +37.45 points | Call | | [third-pot](https://georgelipoker.com/call-or-fold/15-outs-flop-vs-third-pot.md) | 20.00% | +34.12 points | Call | | two-fifths-pot | 22.22% | +31.89 points | Call | | [half-pot](https://georgelipoker.com/call-or-fold/15-outs-flop-vs-half-pot.md) | 25.00% | +29.12 points | Call | | [two-thirds-pot](https://georgelipoker.com/call-or-fold/15-outs-flop-vs-two-thirds-pot.md) | 28.57% | +25.55 points | Call | | [three-quarter-pot](https://georgelipoker.com/call-or-fold/15-outs-flop-vs-three-quarter-pot.md) | 30.00% | +24.12 points | Call | | pot-size, this page | 33.33% | +20.78 points | Call | | 1.25x-pot | 35.71% | +18.40 points | Call | | 1.5x-pot | 37.50% | +16.62 points | Call | | 2x-pot | 40.00% | +14.12 points | Call | | 3x-pot | 42.86% | +11.26 points | Call | | 4x-pot | 44.44% | +9.67 points | Call | Your 54.12% chance tops every price in the table, so every bet size is a call: the largest price, 44.44%, is still below it. ## Where to look next - [15 outs on the flop](https://georgelipoker.com/outs/15-outs-flop.md) - [Pot odds for a pot-size bet](https://georgelipoker.com/pot-odds/pot-size.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 ### What is the right play with 15 outs when a pot-size bet comes on the flop? Reduce the question to a comparison of two numbers: 54.12% to hit and 33.33% to break even. The first minus the second is +20.78 points, which makes this a call, and the call averages +$62.35 on a $100 pot if no more betting follows. ### How many outs are enough to continue against a bet of the full pot on the flop? You need at least 9 outs against a pot-size bet on the flop. That count hits 34.97% against 33.33% needed, and 8 falls short at 31.45%. With 15 you are 6 past the minimum. ### How many cards should you count when a pot-size bet arrives on the flop? Match the number to the betting. All-in or checked down: 54.12%. Facing another bet on the turn: 31.91%. The price is 33.33%, so the verdicts are call and fold in that order. ## How this is computed The chance rests on counting, not on a rule of thumb. Blank pairs: 496 out of 1,081; hit chance: 54.12%. Keep the assumptions in view: a full call ($100 into $300, or 33.33%), the whole pot on a hit, no more betting, and 47 unseen cards that are equally likely. The math does not know what the other player holds. Computed from the closed form by the GeorgeLiPoker math library. ## Related pages - [15 outs on the flop](https://georgelipoker.com/outs/15-outs-flop.md) - [Pot odds for a pot-size bet](https://georgelipoker.com/pot-odds/pot-size.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)