# Math question required equity for calling an all-in

• Global
Joined: 16.02.2013
Blinds: 20/40

Hero Stack: 600
Villain: 1000

Villain post SB 20 (Villain Stack: 980)
Hero post BB 40 (Hero Stack: 560)

Villain (SB) open raise 80 (Villain Stack: 900)
Hero (BB) all-in 560 (Hero Stack: 0 [all-in] )

Hello how much equity do I need if we say that Villain will call Hero all-in?

Can I use the formula like this?

risk / ( risk + reward + blinds)
560 / ( 560 + (560+560) +60 ) = 32,21%

(560+560) because Villain will call my all-in so the pot size would be: 560+560=1120 + 60 blinds.

Can I use the formula like this?
• 4 replies
• Bronze
Joined: 29.12.2009
Hy!

I think it's your risk/total winnings.
With the numbers: 560/1180=47,5%
• Bronze
Joined: 28.01.2012
The above formula is right except total pot is 1200.

And its right if villain calls you 100% of the time, otherwise you need less equity, based on how often he folds to the all in.
• Global
Joined: 16.02.2013
Originally posted by metza
The above formula is right except total pot is 1200.

And its right if villain calls you 100% of the time, otherwise you need less equity, based on how often he folds to the all in.
You mean Johns formula right?

Ok, its obv. John formula and not my because my formula is wrong.^^

Thx for the help.
• Global
Joined: 16.02.2013
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