river raise with A high multiway?

[Noir_Desir]

River bettor is 34/12/2,3/39 over 150 hands.

I figured no one had any better than A high on the turn and button might just try to steal the pot on the river. Obviously i dont want overcalls here. OK or just spew?

PokerStars 2/4 Hold'em (5 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

Preflop: Hero is SB with A[img]/images/graemlins/club.gif[/img], K[img]/images/graemlins/heart.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">MP raises</font>, Button calls, <font color="#CC3333">Hero 3-bets</font>, BB calls, <font color="#CC3333">MP caps</font>, Button calls, Hero calls, BB calls.

Flop: (16 SB) J[img]/images/graemlins/diamond.gif[/img], 4[img]/images/graemlins/club.gif[/img], 4[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(4 players)</font>
Hero checks, BB checks, <font color="#CC3333">MP bets</font>, Button calls, Hero calls, BB calls.

Turn: (10 BB) 9[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(4 players)</font>
Hero checks, BB checks, MP checks, Button checks.

River: (10 BB) 9[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(4 players)</font>
Hero checks, BB checks, MP checks, <font color="#CC3333">Button bets</font>, <font color="#CC3333">Hero raises</font>

[milesdyson]

button can easily have a 9 or 55-88 that didnt bet the turn.

[unterfish]

I like the play.
Buttons AF is high enough to bet A high here himself. By raising, you probably force other A high off the hand.
Although his WtSD is rather high, it is also possible that Button could drop 55-88 or A high.