Weird Straight On River

River raiser is 50/4/1.67. However, the caller is none other than ODoyleRulz58. If you don't know him, lets just say he is conservitive. Is this a 3-bet?

Party Poker 5/10 Hold'em (6 max, 6 handed) converter (http://www.selachian.com/tools/bisonconverter/hhconverter.cgi)

Preflop: Hero is BB with 2/images/graemlins/diamond.gif, 6/images/graemlins/spade.gif.
UTG calls, <font color="#666666">1 fold</font>, CO calls, Button calls, SB completes, Hero checks.

Flop: (5 SB) 5/images/graemlins/heart.gif, T/images/graemlins/diamond.gif, 8/images/graemlins/spade.gif <font color="#0000FF">(5 players)</font>
SB checks, Hero checks, UTG checks, CO checks, Button checks.

Turn: (2.50 BB) 3/images/graemlins/spade.gif <font color="#0000FF">(5 players)</font>
SB checks, Hero checks, UTG checks, CO checks, Button checks.

River: (2.50 BB) 4/images/graemlins/diamond.gif <font color="#0000FF">(5 players)</font>
SB checks, <font color="#CC3333">Hero bets</font>, UTG folds, <font color="#CC3333">CO raises</font>, Button calls, SB folds, Hero?

Final Pot: 8.50 BB

[fyodor]

I think you can rule out Rulz having you beat. Did the moron in the CO seat hit a bigger straight though? If it was a situation where you could fold to a cap, 3 betting would be nice because you are likely to get 2:1. However a cap from this guy could just mean he doesn't even see a straight is possible.

I take the conservative route and just call.

Ya I thought this hand was really weird. I can say that ODoyle will fold all hands I beat if I 3-bet. I can't help but think calling is weak though.

[clownshoes]

3bet. 67 bets the flop.