top pair no kicker

[Poldi]

SB is very loose and not very aggressive.
UTG seemed loose and even more passive.

Party Poker 1/2 Hold'em (6 max, 5 handed) converter (http://www.selachian.com/tools/bisonconverter/hhconverter.cgi)

Preflop: Hero is BB with 9/images/graemlins/spade.gif, 4/images/graemlins/heart.gif.
UTG calls, <font color="#666666">2 folds</font>, SB completes, Hero checks.

Flop: (3 SB) 9/images/graemlins/heart.gif, 6/images/graemlins/heart.gif, 7/images/graemlins/spade.gif <font color="#0000FF">(3 players)</font>
<font color="#CC3333">SB bets</font>, <font color="#CC3333">Hero raises</font>, UTG calls, SB calls.

Turn: (4.50 BB) 2/images/graemlins/diamond.gif <font color="#0000FF">(3 players)</font>
SB checks, <font color="#CC3333">Hero bets</font>, UTG calls, SB calls.

River: (7.50 BB) 5/images/graemlins/spade.gif <font color="#0000FF">(3 players)</font>
SB checks, Hero checks, <font color="#CC3333">UTG bets</font>, SB folds, Hero calls.

Final Pot: 9.50 BB

My top pair is very vulnerable on the flop so I had to protect it. Pot is very small though. On the turn I still thought I have the best hand but as both were pretty passive I didnt like them both going to the river.
Did I play this right?

[aK13]

SB not very aggressive

Board coodinated as hell

Weak TP (lots of overs can come, no kicker)

Small pot

I don't know if I'd hang on here...

[Subby]

I like it all the way down the line. River sucks for you, but I don't think I can fold it...

[Surfbullet]

The river sucks for you, but I think you still have a bet. Smaller pairs will call, while better hands w/ a 9 will be unable to raise b/c of the coordinated nature of the board. Fold to a raise.

Surf