Known players:
[tg]Position_Stack:hands/vp$ip/RaisePreflop/AF/WTS/ORL/BBvsSteal/W$SD;Hero$6.45:///////;BB$10.2:60/30/8/1.1/47/10/-/33;MP2$2.85:44/66/5/0.7/45/0/0/27;MP3$9.95:46/30/15/1.3/44/20/0/71;CO$10.65:63/51/0/1.0/32/0/100/58;BU$8.4:55/33/15/2.7/23/0/-/60;[/tg]
0.25/0.5 Fixed-Limit Hold'em (6 handed)
Hand recorder used for this poker hand: Elephant 0.90 by www.pokerstrategy.com.
Preflop: Hero is SB with 5♥, 5♠
2 folds, CO calls, BU folds, Hero raises, BB folds, CO calls.
Flop: (5.00 SB) Q♦, J♠, 6♦ (2 players)
Hero bets, CO calls.
Turn: (3.50 BB) 4♣ (2 players)
Hero bets, CO calls.
River: (5.50 BB) 7♠ (2 players)
Hero bets, CO calls.
Final Pot: 7.50 BB
Flushdraw etc. you should check/call the river as you actually have to call a riverraise against his polarized range and you don't actually want to pay 2BB on the river with 5h pair. bet makes less sense than check/call.