New 1/2 table, stacks for hero & villain are right around ~$300.

Hero straddles the button for $4.

4 callers, hero raises $20 more on the button with 6c7c. Villain in the cutoff calls. Minimal history with villain but he mostly plays OK ABC and
pot controls.

Flop is 5d8s9d. villain checks, hero bets $27, villain calls.

Turn is 5s, villain checks, hero best $64, villain calls.

River is 7h, villain checks...Hero???

Interested in turn and river. On the turn, his range is still pretty wide IMO. Maybe the $64 is too little and keeps him drawing to a wider range...??

Bet sizing is too small. Check back river.

I am bet/folding about $80-100 on the river

Your line looks bluffy considering you raised preflop and the 6 is the perfect bluff card if you were bluffing, it looks like you wiffed and he should look you up. Most villains aren't going to ship it here without a hand better than a 6x hand

40 flop, 100 turn, bet/fold 100 river

Grunch

Pre I'm cool with.

Flop: gotta bet bigger! You bet 27 into ~51. That's gotta be closer to 40.

(Big pet peeve of mine is when the pot is > $40 and people bet in non $5 denominations, if he'll call $27, he'll call $30, speed the game up...)

Turn: AP same as flop, bigger! 80-85

River: AP, I may bet 70 to induce a bluff. We lose to JT and a random 57, 58, 59, but they are really random. He has a lot more 98, 97s, 87s and FDs that missed in his range

ffs bet more

PF: Not a fan of straddles, but hey, whatever does it for you. Well, I'm not sure why we are raising here with 4 callers. This hand plays well multi-way; why don't we just check our straddle? We don't want to play this hand with an SPR of 3 assuming everyone calls.

F: Heads Up. Pot is $63 (assumes the blinds folded). SPR is 4.3. So we flop a straight and we fire 40%P. Don't like the bet. Because we straddled and raised our straddle, we likely have an aggro image, so we should C-bet more here to build the pot. Also, we need to charge draws more. We need to have better sizing to get stacks in the middle. Plus betting more gets value from his overpairs and sets.

T: Pot is $117. Effective stack has $249 left. We bet 54%P. We've put in almost 38% of our stack. We should of bet more on the flop and turn to set up an easy river bet. Now we are in a bit of an awkward situation. I would of bet about 2/3P.

R: Pot is $245. We've got $185 left. 7 completes the JT OESD. I'm going to bet for value here. I'd bet a little less than 1/2P ($100-$115) targeting his 99+, 98. I doubt he's got a FH, a 5, or JT here, becasue he probably leads those on the river since our bets on the F and T have been low and he's afraid we check behind.

Edit: @ohmyrage: Assuming you bet $100 on the river, you're really going to fold after putting in 71% of your stack?

I checked back the river and he shows J10 without the flush draw.

Based on the responses, It seems like my bet sizing was the major issue and I gave him an opportunity to get there.

bet sizing is way to small otf and especially ott. You want as much as possible going in when you flop the nuts. ( like $45 flop/$110 turn)

as played, go ahead and check back the river, it's almost impossible to get called by worse.

Agree with checking back the river. My feeling was he had to bet the river with any J10 hand or mixed variation of a boat. He also probably fires with Ad7d but it's less likely have has that hand

I wouldn't raise pre. You're unlikely to fold out 4 players and you should be happy to see a flop in position with 76s.

Miracle but draw heavy flop that you need to bet big. Primarily for value, but also for charging better straight/flush draws and getting money in before an action killer card. I believe you only bet about 1/2 the pot and you should make it a full pot sized bet. Same thing on the turn. You bet slightly more than 1/2 bet and it should be a PSB.

You should check the river. You're not getting called by worse. Any 6 will call or raise to split. All missed draws will fold or bluff raise. A better straight or boat may be trapping you. Any two pair hands will probably fold to a raise.

Bigger on all streets, but it looks a lot like diamonds. If he's incapable of turning something into a bluff, just bet for value, hope something ridiculous looks you up. Sometimes I'd bet like $20 otr if I think he has a missed fd and no pair, bet small enough to get what V has to call, A-high might call $20 otr.

Raising pre-flop is pretty spewy. Don't raise, go to the flop.

More on flop.

More on turn.

Check back river.

No, that's not it at all. You got a miracle flop. Your goal shouldn't be trying to get everyone to fold their 7-outers.

When you open 67s it's quite likely that someone is going to have a better straight draw.

Postflop everyone played their cards the same way they would if they were face-up until the river -- and then you didn't pay him off. I don't think you made any post-flop mistakes.