The opponent is really tight, 3 handed my chip stack just went up and up. He knocked out the 3rd player, but i'm still the chip leader going into HU.
He's super tight, as in, folds a lot of buttons/ doesn't defend enough from the BB.
We have 195k at the start of the hand. He has 148k.
We are on the Button with

.
Blinds 2k/4k.
We min raise to 8k. He did this weird min click back, another 4k, it's the first time he has done this. We call.
Pot= 24k.
Flop:

. Bet 12k Call. Pot 48k.
Turn;

. He checks. When he checks I think I have the best hand here and bet to protect from xs type hands. Might still be behind to over pairs 99+. Felt I did have to protect my hand a bit go for value/ we can check behind a lot of rivers.
I bet 20k. He calls. Pot is 88k.
River

. He has 108k behind.
I set him all in. He tanked for ages, I was begging for a call. He used the full time bar, before calling.
Thoughts on the river sizing, eg slightly over bet.
Cheers everyone.