[schwza]

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I did call, he had AK

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you'll generally get better responses if you don't post results in your original post.

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and hit an A

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this is completely irrelevant and should never have been posted. it also makes you look like you're whining about a bad beat.

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I raise 3.5X BB (about 300 chips)

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i assume you mean it's 50/100? this is much more important than things like the average stack size.

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I figure I'm either a coin flip with an AK or dominated by AA, KK.

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if you believe villian will push AA/KK/AK every time and never with anything else, you're risking 1700 to win a total of 4100, so you need to win ~41% to justify a call. you're 20% 12 times and 55% 16 times, which works out to 40% to win. so if that's your read, you should fold. however, realistically, AK will push almost every time (i think), where AA/KK are more likely to get cute, and a lot of other hands will push occasionally. so you should call.