I'm not sure if this would qualify as a cooler or just a bad series of plays on my part but it was tournament ending...ugh
https://www.cardschat.com/replayer/624RoEKeI
Preflop
Calling an UTG raise out of SB with K7s is way to loose. We should not be doing much cold calling at all from SB, and especially not against EP opens. Even a hand as good as KQs is actually kind of a dicy spot, because its still dominated by his range, and you are still out of position without even closing action.
Flop
You flop second pair on a very connected boart, where a straight is already possible. You lead out for 1BB, and this just makes no sense. You are never getting a better hand to fold, and your hand is not good enough to bet for value. So just check, as you should with your entire range in this situation.
Turn
You improved to trips, so in case BB called you on the flop with a weak AX hand, now you moved ahead. You decided to check, and I think, that is leaving money on the table. You can get value now from AX and gutshot draws, so I would bet around 50-60% pot.
River
Pretty much a brick, and now you clearly need to bet for value. However after checking back the turn, it looks like, he has a very marginal hand at best. So I dont like this full pot sizing. I would bet fairly small here like 40% pot trying to get that hero call from AX with a kicker, that dont play, or even JX.
You did get action on your full pot bet though, and he not only called, he raised and put you all in. And this frankly just sucks. You lose to boats, you lose to a straight, you lose to KQ, and you only chop against any other KX, because your kicker dont play. So if you make this call, you are essentially hoping, he is on some wild
bluff. But this would be an absolutely insane line to take as a bluff, when he could just have taken a stab at the turn, after you checked to him.
You are not getting a very good price either getting only a bit better than 2:1. So if we pause for a second and think about, how the hand played out, and his likely range, this is actually a fairly clear fold. It sucks to make trips and then have to fold it, but he is clearly saying, that he has you beat. And basically this is why, we dont play K7. Because even when he hit strong, there are still many ways for us to lose this being one of them.