$11 on PP, call this all-in?

Party Poker No-Limit Hold'em Tourney, Big Blind is t150 (5 handed) FTR converter on zerodivide.cx

Hero (t1410)
Button (t3040)
SB (t1435)
BB (t1295)
UTG (t820)

Preflop: Hero is MP with A[img]/images/graemlins/heart.gif[/img], 9[img]/images/graemlins/heart.gif[/img].
<font color="#666666">UTG is all-In 820</font>

UTG has been very tight, playing about one or two of the last 15 hands, blinds went up 5 hands ago. The button is a maniac and won his stack through a series of outdraws, the rest of the players have been playing to preserve their stacks not gain chips.