tealeaf
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When to call a reraiseHi I am struggling a little with the maths!!
Is it possible somebody could help??
What formular is used to decide whether or not it is correct to call a reraise.
I understand that it does depend the type of player you are up against.
I got this question from Mers at husng.com and the answer given is 32.5% but cannot figure it out. Am I an eejit or is the anwer given incorrect?
But mathematically when would it be correct in %%E.V to call a reraise?
On the river, you block bet 150 into a pot of 400, and your opponent jams for 650 more.
How do you need to be good for calling to have better expectation than folding?
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sandman369
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400 pot + your 150 bet = 550 pot now
550 + his 800 (he pushed for 650 more than your bet) = 1350 total pot
You have to call 650 more to win the 1350 pot.
1350/650 = ~2.08
That means you can lose the pot about 2.08 times for every 1 time you win, to make it a break-even call. A.K.A. you have 2.08:1 pot odds.
An easy way to convert this to figure out what % equity you need to make a correct call, is to add the two numbers in the ratio 2.08:1, so the total is 3.08.
Divide the 1 by that number (because 1 is how many times you need to win out of that ratio).
1/3.08 = ~32.5%
Hope that helps.
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BetMagicMoney
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the other way to do it is to divide our call by what we're trying to win and times by 100 to get the percentage, i do it this way as i like to do the math in percentages,
(our_call / (pot + our_call)) * 100
(650 / (400 + 150 + 800 + 650)) * 100 = 32.5%
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sandman369
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Now why the hell didn't I think of that before... 
I always tend to default doing things the hard way 'til someone shows me a better way.
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tealeaf
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Brilliant!!!
Thanks so much.
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