--- title: "Call or Fold: 4 Outs vs 1/2 pot, Flop" url: "https://georgelipoker.com/call-or-fold/4-outs-flop-vs-half-pot.md" canonical_url: "https://georgelipoker.com/call-or-fold/4-outs-flop-vs-half-pot" last_updated: "2026-10-21" type: "reference" summary: "Is a call right with 4 outs on the flop against a half-pot bet? Chance 16.47%, price 25.00%, so fold." related: ["https://georgelipoker.com/call-or-fold.md"] --- # Call or Fold: 4 Outs vs 1/2 pot, Flop Is a call right with 4 outs on the flop against a half-pot bet? Chance 16.47%, price 25.00%, so fold. 4 outs against a half-pot bet on the flop miss the price. You need 25.00% and you have 16.47%. - Verdict: Fold (4 outs, flop, half-pot bet) - Chance to hit by the river: 16.47% (two cards to come) - Equity the call needs: 25.00% ($50 into a pot of $200) - Margin over the price: -8.53 points (your chance minus the price) ## Comparing the draw with the bet The price is 25.00% and your chance is 16.47%. You sit 8.53 points below the line, which is a wide gap, so you fold. If you are on a gutshot straight draw, this is your count: 4 outs among 47 unseen cards, or 8.51% on a single card. ## The $100 pot example - Starting pot: $100 - Bet: $50 - You call: $50 - Pot with your call in: $200 - Net gain when you hit: $150 - What a miss costs: $50 - Probability of a hit: 16.47% - Calling is worth, on average: -$17.07 - Price of the call: 25.00% - Exact margin over the price: -8.5338 points - Outs at break-even: 6.23 outs - Margin measured in outs: -2.23 outs Expected value says the same in dollars. Win the whole pot on a hit, lose your call on a miss, add no more betting, and the call loses $17.07 on average: $24.70 in, $41.77 out, -0.341 per dollar called. The same comparison in odds: the odds against hitting are 5.07 : 1, and the pot lays 3 : 1 on a call. One easy error is to use 33.33%, the bet over the pot before your call, as the price. The right price is 25.00%, and the mistaken margin would be -16.8671 points. The bet over the starting pot, 50.00%, would claim -33.5338 points. ## Implied odds that would change the answer To make the call break even you would need to win another $103.65 after you hit, which is 2.07 times your call. Anything above that makes the call a good one. Price of a half-pot call with future winnings added, 4 outs on the flop | Future winnings | Price with them | Your chance minus price | Value of the call | Call? | | --- | --- | --- | --- | --- | | $0 | 25.00% | -8.53 points | -$17.07 | Fold | | $50 | 20.00% | -3.53 points | -$8.83 | Fold | | $100 | 16.67% | -0.20 points | -$0.60 | Fold | | $250 | 11.11% | +5.36 points | +$24.10 | Call | | $500 | 7.14% | +9.32 points | +$65.26 | Call | Outs are the other lever. At 7 outs you reach 27.84% by the river, enough for a half-pot bet, and you are 3 outs away. ## Pricing one card at a time 4 outs against a half-pot bet, one view per row | Cards counted | Chance | Margin over price | Value of the call | Verdict | | --- | --- | --- | --- | --- | | By the river, two cards | 16.47% | -8.5338 points | -$17.07 | Fold | | Next card only | 8.51% | -16.4894 points | -$32.98 | Fold | Whether you count one card or two, the answer is a fold. The river figure is 16.47%, the next-card figure is 8.51%, and both are measured against 25.00%. ## How the answer moves with outs The table shows 4 outs and the draws around it on the flop, all against the same half-pot bet. Each extra out adds about 3.89 points to the chance here. Outs 2 to 6 on the flop against a half-pot bet | Outs | By the river | Margin | Verdict | | --- | --- | --- | --- | | [2 outs](https://georgelipoker.com/call-or-fold/2-outs-flop-vs-half-pot.md) | 8.42% | -16.58 points | Fold | | [3 outs](https://georgelipoker.com/call-or-fold/3-outs-flop-vs-half-pot.md) | 12.49% | -12.51 points | Fold | | 4 outs, this page | 16.47% | -8.53 points | Fold | | [5 outs](https://georgelipoker.com/call-or-fold/5-outs-flop-vs-half-pot.md) | 20.35% | -4.65 points | Fold | | [6 outs](https://georgelipoker.com/call-or-fold/6-outs-flop-vs-half-pot.md) | 24.14% | -0.86 points | Fold | ## Changing the bet, keeping the draw The same 4 outs on the flop meet a different price at each bet size. The table runs from the smallest bet to the largest, and the row for this page is marked. 4 outs on the flop against every bet size | Bet size | Equity needed | Margin | Verdict | | --- | --- | --- | --- | | quarter-pot | 16.67% | -0.20 points | Fold | | [third-pot](https://georgelipoker.com/call-or-fold/4-outs-flop-vs-third-pot.md) | 20.00% | -3.53 points | Fold | | two-fifths-pot | 22.22% | -5.76 points | Fold | | half-pot, this page | 25.00% | -8.53 points | Fold | | [two-thirds-pot](https://georgelipoker.com/call-or-fold/4-outs-flop-vs-two-thirds-pot.md) | 28.57% | -12.11 points | Fold | | [three-quarter-pot](https://georgelipoker.com/call-or-fold/4-outs-flop-vs-three-quarter-pot.md) | 30.00% | -13.53 points | Fold | | [pot-size](https://georgelipoker.com/call-or-fold/4-outs-flop-vs-pot-size.md) | 33.33% | -16.87 points | Fold | | 1.25x-pot | 35.71% | -19.25 points | Fold | | 1.5x-pot | 37.50% | -21.03 points | Fold | | 2x-pot | 40.00% | -23.53 points | Fold | | 3x-pot | 42.86% | -26.39 points | Fold | | 4x-pot | 44.44% | -27.98 points | Fold | The ceiling for a call is a bet of 0.25 times the pot ($24.55 on a $100 pot), smaller than anything in the table. All 12 sizes ask for more than 16.47%. ## Keep exploring - [4 outs on the flop](https://georgelipoker.com/outs/4-outs-flop.md) - [Pot odds for a half-pot bet](https://georgelipoker.com/pot-odds/half-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 ### What does the math say about calling a bet of half the pot with 4 outs on the flop? Math says fold. The half-pot bet of $50 needs 25.00% equity, 4 outs on the flop give 16.47%, and the margin is -8.53 points. Assuming a whole pot won on a hit and no further bets, the call is worth -$17.07 on average. ### How many outs do you need to call a half-pot bet on the flop? The fewest outs that call a half-pot bet on the flop is 7. With 7 outs you hit 27.84%, which reaches the 25.00% price, while 6 outs hit only 24.14%. You have 4, so you are 3 below that count. ### Does it matter whether you count one card or two against a half-pot bet? Count two cards, 16.47%, when the bet is the last money going in, and one card, 8.51%, when the next street brings another bet. At a price of 25.00%, either number leads to a fold. ## How this is computed Everything is computed from the closed form. Pairs without an out: 903 of 1,081. The rest, 16.47%, hold at least one out. What is held fixed: the call equals the bet, so the price is $50 / $200 = 25.00%; the pot is won whole on a hit; there is no further betting; and each of the 47 unseen cards is as likely as any other. Opponent cards are not removed. Computed from the closed form by the GeorgeLiPoker math library. ## Related pages - [4 outs on the flop](https://georgelipoker.com/outs/4-outs-flop.md) - [Pot odds for a half-pot bet](https://georgelipoker.com/pot-odds/half-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)