+EV river decisions?

[johnny_fish]

River bets confuse me.. Should I bet/fold, bet/call or check/call.

Prima Poker skin
No Limit Holdem Ring game
Blinds: $1.00/$2.00
9 players
Converter

Stack sizes:
UTG: $31.20
UTG+1: $196.73
MP1: $316.15
MP2: $156.00
MP3: $490.48
CO: $213.72
Button: $108.32
Hero: $716.70
BB: $198.00

Pre-flop: (9 players) Hero is SB with A K
5 folds, CO raises to $4, Button folds, Hero raises to $13, BB folds, CO calls $12.

Flop: 8 2 K ($27, 2 players)
Hero bets $16, CO calls $16.

Turn: J ($59, 2 players)
Hero bets $30, CO calls $30.

River: J ($119, 2 players)
Hero bets $50, CO calls $50.

Results:
Final pot: $219

Prima Poker skin
No Limit Holdem Ring game
Blinds: $1.00/$2.00
9 players
Converter

Stack sizes:
UTG: $193.00
Hero: $582.50
MP1: $197.75
MP2: $345.45
MP3: $148.00
CO: $180.40
Button: $191.15
SB: $376.18
BB: $195.55

Pre-flop: (9 players) Hero is UTG+1 with Q A
UTG calls $2, Hero raises to $8, 3 folds, CO calls $8, 3 folds, UTG calls $8.

Flop: 7 J Q ($27, 3 players)
UTG checks, Hero bets $18, CO calls $18, UTG folds.

Turn: 4 ($63, 2 players)
Hero bets $45, CO calls $45.

River: J ($153, 2 players)
Hero checks, CO checks.

Results:
Final pot: $153

[chewbaka]

A check on both hands IMO is the right play. Check-fold/Check-call just fine with me.

Hand1. 3 hearts worries me. He had pot odds on your flopbet
Hand2. the board paired.

[jackvance]

hand 1:
I'd raise a bit more on the flop with that flush draw out. Around $20-$22. But I don't think your bet is too bad either. You don't want to scare him too much with what seems to be a great flop there. And I think he paid too much preflop to consider him holding a pp that might have hit a set.

But the turn scares me.. your bet is good, but I'm thinking what he could have to call you there. He obviously has something.. but what? AA/KK got you beat. Calling the flop, ok maybe he thought c-bet or something, but calling the turn.. he'd have to have KQ? Or maybe he has AK of his own. I'd check/fold or check/call if it's not too high. But I don't like that raise really.. seems like you'd be lucky to tie here.

hand2:
I'd be a little worried about QJ maybe, but I think you did the right things on this one. I think he has KQ here.