Bet this river? KQo

[AZK]

I've been playing very fast and running good, so the flop check was really pot control/waiting for people to make a move, turn minraise was also sort of a pre-river block. I agree this probably looks ugly, but i wasn't expecting to get called in 4 spots pre.

Ultimate Bet No-Limit Hold'em, $25 BB (6 handed) FTR converter on zerodivide.cx

saw flop|<font color="#C00000">saw showdown</font>

UTG ($2272)
MP ($2500)
<font color="#C00000">Hero ($9001)</font>
Button ($1040)
SB ($3156.50)
<font color="#C00000">BB ($4064.50)</font>

Preflop: Hero is CO with K[img]/images/graemlins/diamond.gif[/img], Q[img]/images/graemlins/club.gif[/img].
<font color="#666666">2 folds</font>, <font color="#CC3333">Hero raises to $85</font>, Button calls $85, SB calls $75, BB calls $60.

Flop: ($340) 3[img]/images/graemlins/spade.gif[/img], K[img]/images/graemlins/heart.gif[/img], 8[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, BB checks, Hero checks, Button checks.

Turn: ($340) 5[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, <font color="#CC3333">BB bets $250</font>, <font color="#CC3333">Hero raises to $500</font>, Button folds, SB folds, BB calls $250.

River: ($1340) 2[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
BB checks