I thought about this for a while then made a tight fold, but I think this should be a call?
It was the first time anyone had done a big shove like this
Seat 9 is the button
Seat 2: Player2 ( 1701 ) - VPIP: 28, PFR: 15, 3B: 0, AF: 2.0, Hands: 61
Seat 6: Player6 ( 779 ) - VPIP: 39, PFR: 2, 3B: 5, AF: 1.8, Hands: 66
Seat 8: Player8 ( 1132 ) - VPIP: 32, PFR: 12, 3B: 3, AF: 0.8, Hands: 319
Seat 9: Player9 ( 2287 ) - VPIP: 36, PFR: 17, 3B: 4, AF: 1.0, Hands: 88
Poker Stars, $3.11 Buy-in (25/50 blinds, 6 ante) No Limit Hold'em Tournament, 9 Players
Poker Tools Powered By Holdem Manager - The Ultimate Poker Software Suite.
Hero (SB): 1,123 (22.5 bb)
BB: 1,701 (34 bb)
UTG+1: 1,261 (25.2 bb)
UTG+2: 1,081 (21.6 bb)
MP1: 1,144 (22.9 bb)
MP2: 779 (15.6 bb)
MP3: 2,992 (59.8 bb)
CO: 1,132 (22.6 bb)
BTN: 2,287 (45.7 bb)
Preflop: Hero is SB with Q♠: A♥:
3 folds, MP2 calls 50, MP3 folds, CO calls 50, BTN raises to 2,281 and is all-in, 4 folds
Results:
Spoiler
279 pot
BTN mucked and won 279 (223 net)