KK lost heads-up

[igbr1]

When should I fold here?

Party Poker 0.50/1.00 Hold'em <font color="#0000FF">(10 handed)</font> link (http://www.darksun.lunarpages.com/poker/)

MP3 ($21.22)
CO ($22.25)
Button ($28.25)
SB ($14.00)
BB ($12.12)
Hero ($50.50)
UTG+1 ($8.12)
MP1 ($24.00)
MP2 ($3.46)

Preflop: Hero is UTG with K/images/graemlins/spade.gif, K/images/graemlins/diamond.gif.
<font color="#CC3333">Hero raises</font>, UTG+1 calls, <font color="#666666">7 folds</font>.

Flop: (5.50 SB) 4/images/graemlins/diamond.gif, J/images/graemlins/diamond.gif, 5/images/graemlins/spade.gif <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets</font>, <font color="#CC3333">UTG+1 raises</font>, <font color="#CC3333">Hero 3-bets</font>, UTG+1 calls.

Turn: (5.75 BB) J/images/graemlins/club.gif <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">UTG+1 bets</font>, Hero calls.

River: (7.75 BB) J/images/graemlins/heart.gif <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">UTG+1 bets</font>, <font color="#CC3333">Hero raises</font>, <font color="#CC3333">UTG+1 3-bets</font>, <font color="#CC3333">Hero caps</font>, UTG+1 calls.

Final Pot: 15.75 BB.

Why do you not bet or raise the turn but then cap the river. I mean you are really afraid of him holding pocket 5s or 4s or a J on the turn.

I think the way he played a J is much more likely. Most players at these limits will cap the flop with a set if they have the opportunity to do so.

So if you think he has a J, the rivered FH is worth nothing at all. Did you think he had the J at the turn?

At the very least I think that capping the river is a decent sized mistake. And your turn/river play doesn't make much since. I would bet the turn, as played I think I bet/call the river, though c/r, call 3bet is ok.

You were too agressive on the river. I dont see a reason to fold. The guy limped in preflop, who knows how good he thinks his hand is.