Just sat down at this table and am sitting at 260, know barely anything about villain, just know he's not a complete spewer. He has about 450.

Hero in SB with QdJh, UTG straddle 5, 3 limpers, including villain who limps from button and I limp from SB. Straddle checks. Not a huge fan of just limping here just because it puts you in tricky spots post flop, but I decided to limp in, not getting too carried away with Top pair/mid kick though if I flop something.

Flop (27)
8d 9d 10d

Hero bets 15, only villain calls from button.

Turn (57)
As

Hero bets 50, villain raises to 120, hero calls.

River (297)
Ah

Hero (120) checks to villain who goes all in, hero folds.
Should I have even made it to river? The ace defs makes it easier to fold but I feel like I'm folding even if board doesn't pair. Thoughts on how I played it? Thanks!

I'm not an expert but I would have jammed turn happily.

Tricky spot... since you don't know too much about your villian I think this is a fold.

Personally I don't play QJo in the SB since it's a trouble hand.

As bad as it feels turn is probably a fold. You only have one out against most flushes. I'd have called a flop raise but turn raises are always pure value and not semi bluffs.

Bet-f turn is fine - not a fan of bluff catching w straights at 1-2.
Also, bet less ott and try not to put half your stack in, particularly as a caller, unless you know it's all going in at some point.

The river doesn't change much for you when you have ~90 behind as V is still shoving NFs (and SF obv) when the board pairs, even if he doesn't like it considering you might have bet-c a set ott sometimes.

If you call turn, you are kinda priced in to call river. Way more combos of A♦️X than anything else. If he turned 2pair with the A♦️ he may do this, but he probably would also with A♦️Jx and things like that.

We only need to be good ~20% of the time so I'm calling it off

It's a nasty spot to be in.

I can't really blame you for completing sb. I might have - but that's because my mode when first sitting is very non-engagement - until I pick up some reads... for instance many straddlers will always raise if they get multi limpers back to them.

So, the flop looks like gin..... sort of.
You have to bet. With a board this wet - I might go a little higher. No raises... and this is likely were you would see a naked A raise.

OTT. Looks to be a good card. It improves the range of your opponent often (hands like AJ, AT, even A9ss, A8ss and A7ss. I don't think you can check this... 50 looks fine to me.

The raise is really bad news. But it also is a little suspicious. Bad news because (as someone noted) turn raises look to be value - and he didn't shove. Suspicious because it's hard to give him a hand that doesn't fear giving you a free card on the flop. Really just Ax. But you have to know that you are going to be facing an allin if you call turn. You have only 1 out to the hand he represents and he still have some equity even if you are ahead.

I'd like to think I could fold here (but not sure I could). After you call turn - you have to call river.

Ya I definetly think bet folding turn is probably the best play. I see him raising sets, 2 pair on flop. Only hand that I beat on turn that makes sense is AdJx.
Btw he showed A7dd

The decision of this hand is on the turn - jam/fold to the reraise. It's probably close, without reads on villain I'd jam. As played, river is awful card, we're behind most of the hands we could've been beating a c/r on the turn with, but with the odds that you are getting I think you'll see just an Ad often enough to call (not often, but probably 25%+, so price is right).

I'm calling river as played. We need 28% equity to call. I'm making three assumptions: (1) villain bets 100% of trip Aces hands on the river for value, thinking he's good (2) villain never flats a non nut-flush on the flop in a limped pot without the Ace of diamonds bc it can get counterfeited (3) villain is never bluffing

Let's look at hands with the Ace of diamonds. Start with literally all 44 combos left in the deck (besides your two cards, and Td9d8dAhAs). Remove the last ace -- Remove 4 kings -- Remove 4 queens, hes raising those pre. That leaves 20 combos you beat, and 16 combos give him flushes/boats. Then we can do the non Ad hands that might flat the flop here: AcJd, Jd7d, 7d6d. I'm going to discount 88-99-TT as they wouldn't limp button. That actually gives you the right price to call. Everything else you can put into V's range will just make call more correct as QJ is ahead.

22.3%

pot on river is $297 + 2($120) = $537

120/537 = 0.223 => 22.3%

(5) in the hand!

What's the expression? "Don't go broke in a limped pot" What's the other one? "You're either way ahead, or way behind."