Flopped trips

Poker Stars, $0.01/$0.02 No Limit Hold'em Cash, 7 Players

SB: $1.20 (60 bb)
BB: $1.48 (74 bb)
MP1: $2 (100 bb)
MP2: $1.78 (89 bb)
MP3: $2.22 (111 bb)
CO: $1.74 (87 bb)
Hero (BTN): $6.23 (311.5 bb)

Preflop: Hero is BTN with T J
3 folds, CO calls $0.02, Hero raises to $0.08, 2 folds, CO calls $0.06

Flop: ($0.19) T T Q (2 players)
CO checks, Hero checks

Turn: ($0.19) 4 (2 players)
CO checks, Hero bets $0.09, CO calls $0.09

River: ($0.37) 2 (2 players)
CO bets $0.50, Hero raises to $1, CO raises to $1.57 and is all-in, Hero calls $0.57

Results: $3.51 pot ($0.12 rake)
Final Board: T T Q 4 2
CO showed 7 5 and won $3.39 ($1.65 net)
Hero showed T J and lost (-$1.74 net)

I checked the flop because he usually made continuation bets. I wanted to re-raise after his cbet

fold pre. Bet flop. Bet turn bigger.

I don't hate the raise pre if we think this guy limps and folds flop too much, which is reasonable. We have the button, this is probably the bottom of my ISO range against some limpdonkeys. But yeah bet flop and bet turn more for sure, also just call the river overbet. This is an unusual bet and it's unlikely to be a bluff. He doesn't have many dominated Tx and to be honest I think we're beat and should probably fold. however it's micros and I'd call because I'd level myself into thinking some idiots do it with air. Raising is very bad though, he can't continue with anything worse apart from worse Tx, which he very rarely has, meaning his continuing range crushes us.

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I checked the flop because he usually made continuation bets. I wanted to re-raise after his cbet
Flop: ($0.19) T T Q (2 players)
CO checks, Hero checks
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Story doesn't really checkout. He already checked the flop first without cbetting and you checked behind.
It would have been better to use the position and make the bet because he had checked.

Apart from anything else though, as you now know, the river raise was a bad mistake.

I just want to talk about the OP's isolation raise and what he should consider before raising. At 2nl, you will constantly be facing limpers in front you. Knowing when and why to iso raise will help your game significantly.

There are already a lot of good posts and vids out there on the iso raise but here is what I do.

I use the following guideline in deciding whether to raise:
1) Value. My hand is better than the range of the limper(s)
2) Immediate profit. I expect them to fold either to my raise or to a cbet. This is pretty much a semi-bluff at best.
3) My hand is good enough to play IP against a fish, WHOM I CAN OUTPLAY POSTFLOP, usually because the fish will stack off extremely light.

While you are working on your game, I would only focus on the first 2 reasons. An honest assessment of this hand would indicate that you have some work to do on your post-flop play.

As for raising for value, you really have to have some reads. For instance, a 46/9 and an 11/0 would both be likely to limp the CO, but they are vastly different players. Use their stats to get an idea of their range. Better yet, anytime someone limps and goes to showdown, I add it to my notes for that player. The wider their range, the wider you can make your range. For instance, AT is a good iso hand against a 46/9 who limps all his smaller Ax but would have raised with a bigger A. An 11/0, on the other hand, is more likely to have you dominated if an A flops.

Some players you can iso raise with just about any 2 cards because you expect to make an immediate profit, but again, you have to have a solid read. How often do they fold after limping? How often do they fold to a cbet? I know a surprising number of players that see over 1/2 the flops, but play very fit or fold postflop. You can iso them with just about any 2.

There is obviously a lot more to it than that, but my main point is don't fall into the trap of being mindlessly aggro. "I'm raising because I'm mimicking the instructor I saw in a video." Understand what you are trying to accomplish with every action you make. That will make your postflop play better because you will have a plan.

For instance, in this hand, JT certainly isn't for value and since you didn't have any reads, it couldn't be for immediate profit, so I can only assume that you thought you could outplay him postflop. Well, the whole point of that is to extract max value when you hit a monster like..trips on the flop. If you played a hand because you thought the player would call with garbage, then you have to bet when you make your hand. Simple game...sometimes.

My last advice is to use some hand tracking software, even if it's not a HUD, and filter for hands that you iso raised. Study the results and look at bunch of the hands. You will definitely get better.

Bet flop. Bet turn bigger. Do not raise his river overbet imo.