My local cardroom hosted a HU tournament last night. We had 8 runners. I took 2nd. The semi-final matchup was the toughest match by far. I lost the championship because the Vil got there several times when we got AI and I was ahead. Anyway, the final hand in the semi is giving some problems.

The Vil is aggressive pre, opening from the SB/button quite liberally, 3betting from the BB around 30-40%. Live play, so I don't have exact stats. But I know when I open raised, he 3b quite a bit. I have him covered around 65%/35%.

I'm on the button/SB with around an 80bb stack. Vil prob has around 25-30bb

2nd level of 2nd match, best of 3, I won 1st match.

I have KK. I raise about same as all other button opens, around 2.5bb. I have never 4b at any point in match.

Vil raises to around 10bb.

Since he had been 3b pretty liberally, and I have never 4b, I feel like his range could include some less than premium hands, for example, KQ, JT, 66-TT maybe even some suited connectors that he would let go of if I 4b. Obv his premium hands, he is calling/jamming considering how much he put in pre.

My question is, considering how loose his 3b range could be, is this an auto 4b? I felt like he would jam any flop, and I'm calling everything, maybe finding a fold if there is an A on board, but probably not. But felt that if I 4b he might let go of the bottom 20-35% of his hands.

This forum room seems a little thin, so I'll wait a while to post more about this hand as needed...

Thanks

He put more than 1/3 of his stack in already (if your chip count is correct). If he is any good, he should be never folding here. If he has 40-50BB, I like just flatting.

If you 4-bet and he folds that is fine too. You took 35-40% of his stack while denying him any of his equity (KK does not win 100% of the time).

And btw was it winner takes all or did it pay 1st-2nd?

2nd place got $200 1st like $480. It is a charity poker room, so there is some rake off top, and the $100 included dealer toke.