on bovada, sorry about the format
4.40 tourney 74 entrants

Blinds 600/1200 120 ante
Stacks:
BTN(me): 19463
SB(22/9/0): 31,240
BB(31/29/9): 58137

Dealt to Hero: As9s

I open to 2400
SB ships 31240
BB folds
Hero ?

These two players were playing pretty tight throughout the FT. I was being a little looser once it got to 3 handed, so I dunno if SB was deciding to be tricky. Payouts were 80 50 35.

My thought process was that SBs range was really strong given that BB was still left to act. and just thought the chances were I was going to have either 30% or 50% equity if i got it in.

I ended up folding, however after the tourney this hand bothered me and I kind of think it should have been in the bottom of my calling range, especially three handed. But I mean he just ships over 20BB over a min. I feel like this is just really sick.

Is it close or just a terrible fold? What is your guys' thought process when tanking on a hand like this?

Thanks guys