raising with draws - how much FE needed?

[Dismas]

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I don’t know if this is any easier but this is what I came up with a while back to calculate required fold equity.
Called = total pot if called.

W = Stack if (called * Equity) - Initial Stack
Fold % required = (W) / (W - Current Pot Size)

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I'm not sure I understand. It seems to me that the numerator is bigger than the denominator here, so you would require that the opponent folds more than 100% of the time????

I might just be misinterpreting your formula. Can you give an example of how you would use this formula to calculate required FE?

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Sure.

You’re stack size is 150 (opponent has you covered).
Pot size is 50.
You’re equity if called is 20%.

W = ((150 + 50 + 150) * .20) – 150
W = (350 * .2) – 150
W = -80
-80 / (-80 ) – 50 = -80 / -130 = 0.6153846

You need him to fold 62% of the time for this to be chip EV neutral.

[jay_shark]

There is some missing information . How much does your opponent bet into the pot ? Does he make a pot size bet or a two thirds size bet ?

If he makes a pot size bet , then the amount of fold equity required is :

(3SPR-1)/(3SPR+9) = 8/18 = 44.444% so clearly 62% is too high .

[Dismas]

[ QUOTE ]
There is some missing information . How much does your opponent bet into the pot ? Does he make a pot size bet or a two thirds size bet ?

If he makes a pot size bet , then the amount of fold equity required is :

(3SPR-1)/(3SPR+9) = 8/18 = 44.444% so clearly 62% is too high .

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I over simplified my example calculation. W = the total amount you would win if called times your equity minus your initial stack size. So if your opponent bets into you and you have to call that bet first you have to factor that into the total amount you would win if called. Pot is the size of the pot after you match opponent’s bet.

Example:
You’re stack size is 250 (opponent has you covered).
Initial Pot size is 50.
Villain bets 50.
You call 50.
Pot = 150 = (50 + 50 + 50)
You’re equity if called is 20%.

W = ((Pot) +200 + 200) * .2 ) – 250 = -140
-140 / (-140 ) – Pot = -140 / -290 = .48275