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There are many situations(especially in micro stakes) where it is profitable to get all your money in with an overpair or even top pair.


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Care to mention a few - or one?


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Professional No Limit Hold'em has a lot to say about this. When the stack-to-pot ratio is small, say in a reraised pot, you are usually happy to get all-in for 100 BB with a strong overpair or strong top pair.

Example: MP raises to 4 BB, you reraise to 15 BB with AA on the button. The flop is KT4. Your opponent bets out 20 BB into the 32 BB pot, and a pot-sized raise (20 + 72BB) is all-in. Do it, and it is much more likely that you will get called by a weaker hand that caught a piece of the flop like AK or KQ or QJ than that you are behind. It is also likely that your opponent has some outs, and you want to protect your hand; you shouldn't regret pushing if your opponent folds.

That example works at all stake levels. In microstakes games, it is easier to bet for value, since it is much more likely that your opponent will overvalue a hand like KT on a ten-high flop, or AJ on an ace high board. That means you should not worry as much about the times that you are behind. In order to avoid stacking off when you are behind, you would have to give up too much value.

When you have 100 BB or more, but your opponent has 50 BB, the effective stack size is 50 BB, and it is commonly correct to get all-in with one good pair in a raised pot.

There are also many flops where you can't push for value, but where calling all-in is better than folding. If you are up against two pair, you have about 25% equity on the flop, which means you get a lot of money back even when you are behind. It doesn't take many bluffs to make it profitable to call a pot-sized bet.

Obviously, it is also depends on your opponents. Against a maniac, you don't need nearly as strong of a hand to call all-in as you do against a passive player.