The hand history is difficult to parse. The most glaring omission are the stack sizes. I am assuming that effective sizes for everyone were “9th’s” 50+200+230, or 480, but I’m not sure. I think you played your hand fine, FWIW; you got your money in good, and if I can get the new version of pokerstove to install, I’d cite equity calculations stating just how good. With an effective stack size of 150 BB, I’m going broke with KK pretty much most of the time, absent stereotypical reads that someone has Aces.
Anyway, there are some’ interesting’ decisions being made by the other players at this table. AIUI, you were playing with 9 or 10 players, and you were the Button. UTG through UTG+2 folded. The action was opened by MP with a bet of 16. The Hijack and Cutoff both called.
You raised to 50, which I agree was a little light. I thought in a LL cash game, the general raise amount was (2-3+n)X, where N are the number of people calling the original bet. Accordingly, raising to 65-80 would not be out of line. This would also make set-mining unprofitable. And calling a bet of 50, from an initial bet of 16, doesn’t. Moving along, the small blind cold calls the reraise. Which would scare the crap out of me, if I were either any of MP, HJ, or CO. Big Blind folds, MP accordingly folds, and HJ and CO both call the 50, closing the action. Had you noticed anything about the other players: how tight or loose they were, how sticky were they once they first committed money to the pot, how aggressive were they?
Four (HJ, CO, BTN, SB) to the flop and total pot 219 minus rake. 430 left in the effective stack. An under 2-1 stack pot ratio starting the flop is quite small, and means the hand is going to pretty much play itself. IMHO, you’re going to be eventually be all in on most non-Ace containing flops.
Anyway, two hearts and two tens hit the flop. Everyone checks to you, who bets 200 or pretty much pot. I agree that potting this doesn’t get you anything additional than a more typical continuation bet of half-pot. OTOH, if the maxim is true that once you’ve committed 30% to a third of your stack, you should rarely fold, and if initial stacks were 480, then pretty much any realistic bet here is pot-committing.
So, SB and HJ fold (which is weird—SB had enough to cold call 50, but not to re-raise, and this flop induced him to fold? I guess he didn’t like his AK?), CO ships 430 into a pot of 419, leaving you to decide whether or not to call 230 to win (430+419) 819. You need 230/(819+230) or about 22% equity to call this bet with positive expectation. Do you have it?
If you know he has Aces, you don’t. Similarly, if he has a Ten, you don’t. If he has 88, you don’t. Every other combo, you not only do, but you’re a favorite. There are six combos of aces, three of 88, one TT, and a few likely JT/T9/QT/AT. (Though I personally wouldn’t have played JT or AT with the preceding pre-flop action.) There are a few suited hearts combos, though you having the Kh really blocks a lot of them.
Put together an estimation of the range of hands you suspect he could have, plug that range into an equity calculator, and see how many connector/flush combos you have to give him in order for you to get to 22% equity. I suspect it’s not many. Even if you knew he had Aces, and you’re getting crushed, you’re only a 88-12 dog. It doesn’t take very many combos where you’re a 60-40 favorite, to raise your overall expected equity to exceed 22%, for the range as a whole. You’re a 57-43 favorite with the cards he actually had.
Let’s look at it from his point of view right before his flop shove. He is shoving 430 to try and win a pot of 419. To be profitable, this must work roughly 430/(430+419), or roughly 51% of the time. From his point of view, with a 9 kicker, he probably feels like he must hit his flush to win, or get you to fold, after you’ve shown strength throughout the hand and opened the betting this round with a pot-sized bet. I.e., you probably aren’t folding.
Normally, he has 9 outs to hit his flush, which gives him a 34.5% chance by the river. But he has a paired board, and he can’t be sure all his flush outs are clean. And it could be the case that you have a heart too. The point is, that he has a much worse chance than 34.5% to hit a winning flush, probably didn’t have much fold equity and he still decided to shove: he’s probably not all that good at NLHE.
Reload your stack and go beat these guys.