Bad check on the river???

[illini43]

Villian has check called top pair till showdown a couple of times already...

PokerStars 0.05/0.10 Hold'em (8 handed) converter

Preflop: Hero is BB with Q[img]/images/graemlins/heart.gif[/img], 7[img]/images/graemlins/diamond.gif[/img].
UTG calls, <font color="#666666">3 folds</font>, CO calls, <font color="#666666">1 fold</font>, SB completes, Hero checks.

Flop: (4 SB) 4[img]/images/graemlins/spade.gif[/img], 2[img]/images/graemlins/spade.gif[/img], Q[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, <font color="#CC3333">Hero bets</font>, UTG folds, CO folds, SB calls.

Turn: (3 BB) J[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, <font color="#CC3333">Hero bets</font>, SB calls.

River: (5 BB) 3[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, Hero checks.

Final Pot: 5 BB

Should I bet on the end? I figured if he had me beat he would raise, and if he missed his draw he would fold.