Villian has only been at the table for about 30 min. won a couple small pots without show down. I played one hand with him where i raised a couple of limpers from the BB w/ QQ. I raised to 18 total. I c/c $25 OTF of KK4r, c/c $25 OTT of KK48. the river went check check after an A hit. He tabled 34o.

Hand in Question:
Hero (400) TT in SB.
several limps. i raise to $16 and villain calls from mp.
Flop($38): 478
i bet $22 and he calls
Turn (~80 after rake) 4788
Check/check
River (~80 after rake) 4788J
Hero checks, V bets $50
Hero?

Thoughts on all streets welcome!

Seems fine and call now, especially given his weird looseness. We block 9T, which makes the most sense. He should be betting most of his other value hands on the turn. I expect to lose a lot but see enough 7x, 66, etc turned into a bluff for this to be profitable.

in game i might be apt to call

reading this seems like an easy fold considering how he played the 34o hand

Bet turn.
Fold river.

Why no turn bet? He'll call with plenty worse. B/f turn ~50

The pot odds are 2.6-1, you need to be good ~28%. Between the two hands described in OP if this guy always bets small (nuts or bluff), I'm probably folding as he can't have too many bluffs in his range.

The only obvious draw came in, I doubt he turns 7x or 99 into a bluff often, and he may have a large number of 8x combos against you here, and almost certainly all 8 straight combos. That's a lot of value to balance against and I just don't see him having enough air.

If you've seen him go bigger for obvious value, then a smaller bet is more likely to be a bluff and I would call.

Easy call. He can be betting 99, 7x, 66 more than enough to be profitable. Pretty tough for him to hit that jack once he calls flop and he's not checking back an 8 on the turn very often. If he has 910 that sucks but with pot odds you can't fold to him based on the 34o hand.

I'd bet fold $35 on river

I think I bet turn here. As played should be a pretty comfy fold. A few of his flop combos just got there and j10 is v-betting every time once you check twice.

Due to his sizing in hand 1 compared to hand 2 this should def be a comfortable fold.

I'm betting the turn here to about $45.....what was your reason for checking here??

As played, calling river....hand was played very weakly so easily could be just making a move on you. Not betting turn makes this a difficult spot for you though on river.

in game I remember thinking that the board pairing would be a good card for him to bluff at. I expected a small bet from him OTT. When he checked behind for some reason I read it as strong. Then the $50 river bet put me in a tough spot. Looking back I think I should have b/f $32-40 OTR.

I do like b/f river after the turn check (which I think is fine). You get looked up by a lot of bluff catchers after taking that weird line.

Call river seems mandatory at this point though.

Bet turn. As played, b/f river.

BET TURN. If he calls that we can re-evaluate his range but his range to call with flop is so much wider than his turn call range. Any two broadway cards can peel flop. These kind of hands are folded on turn to 2nd barrel.

By checking turn its quite possible he has binked a Jack on river..

an 8 seems unlikely. His bet on river can often be a bluff brought on by your lack of aggression on turn. If he has binked a Jack its your own fault largely. I'm calling river as played.

Grunch

Call river. You've underrepresented your hand and this villain has already shown that he can bluff in similar spots, so folding would be terrible with the pot odds you're getting. Villain is far more likely to put you on AK than pocket tens.

I would normally bet the turn unless I thought villain was bluffing way too much.

Why is it an easy fold? I think it's an easy call considering how he played that 34o hand.

I'm surprised at the comments saying the river is a fold. I think villain is likely calling the flop with a wide range. The check on the turn keeps his range very wide. What am I missing?

Grunch.

Preflop

Villain called your $18 with 34o. How can you exploit such an awful play? What adjustement should you make.
Raise bigger for value. There is no limit to how big a preflop raise can be. Here you can bet $30 or bigger with a strong hand like TT.

Flop

You don't specify Villain stack size. I assume it's also $400.

Given the previous hand, we can see that Villain is a notable fish.
He will prolly call with any pair, any draw probably including gutshots, perhaps even two overcards. Against this range, you have a very strong (but vulnerable) hand.
How to take advantage from such a leak? Bet bigger. I think that a bet of $35 or more is appropriate. It's a bet for value, but also for protecting your vulnerable hand.

Turn

The turn is not a good card obviously. But again the crucial point we shouldn't lose sight of, is the extraordinary width of Villain's range.
There's still a lot of value to take from a lot of hands. You should just bet thin enough so you are not called only by better hands. A $50 bet should do it I guess.

River

Although it could seems hazardous, I think that again, there is too much value to take vs this ultra wide range to check. You should bet again, very thin, like $35. If you're raised, you're likely behind and should fold.

As played, the river bet is very polarized. It's either a pair of Jacks or better, or air.
I think that these two groups represent about the same number of combos. So you're about 50/50. You have to call 50 to take 130, it's an easy call, and if you're beaten, nh.

Overall, standard line vs such a fish: bet, bet, bet and fold when he shows signs of agression.

I would bet the turn.

As played with turn check, bet the river.

As played with river check, I think it's very close, calling is OK, folding is also OK if you think he's just going to check behind hands like 7x/66/55/54, he shouldn't have very many "air" combos at all that he can even bluff with. It's a weird spot since he shouldn't be betting the river very often at all, especially if you think he bets 7x type hands to "protect" them on the turn.

I would bet turn here for sure. 8 is obv a part of his range but equally I don't think it's a good enough reason to slow down and check.