I'm pretty new to poker and I just got kicked out of an SnG on this hand but I don't know what I did wrong, The guy directly to my left was LAG and the other guy was also pretty LAG. What should I have done (except not raise with 9Ao :P )

If you decide to not bet the flop, you shouldn't raise the turn. You would nver play any sort of bluff that way on this board, and you're not leaving yourself much room to be called by weaker hands.

I know a lot of people raise less than 3x these days, but I don't like the min raise preflop too much.

With these stack sizes, you should be folding A9o from MP. You might be able to make a case for shoving, but we would have to have some pretty specific stats to subtantiate that kind of move. Anything else is unacceptable.

Fold or shove with 17bb, really?

LOL

And they say SNGs are dead

I would bet 250 pre and fold to any re-shove from the players behind.

Checking flop is good - because you won't get much action if nobody else has an ace. Once everybody checks somebody might feel confident enough though to bet the turn with a hand like 88/99.

For the same reasons pg_780 mentioned I think just calling turn is best.

As played we're not in good shape when CO makes a cold call behind us on turn, even when we consider this a very low buy-in level. The board has no draws, so it's very likely he has the 4th ace. Hard to get away from the hand though. It's not impossible he has a lower kicker and will call you down with it. You might as well bet as I see it, since you have to call a bet from him anyway and might get value from some weak aces that could have just checked behind.

To begin with, being kicked ouf of an SNG doesn't necessarily mean that you've done something wrong. It just happens. Tons of times.

I guess both raising and folding are fine. Problem with raising is if BU shoves on you, you'll get pretty good odds to call but would you would still have to fold. I'd make this decision depending on my opponents behind (are they loose, tight?). But if you raise that hand, don't just minraise. I would have made it something like t225-245.
Check flop is fine, call(!) turn, shove river.

I'd either fold pre or raise 2.5x BB. After that i'd fold to any re-raise pre. Unfortunately i'm not getting away from that flop either. Sometimes these things happen!

almost forgot:

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Hahaha but he lost all of his chips then they demanded he not be seated at the SnG any longer! What did he do soooooo wrong mang?!?!?

Bit of a cooler really. You should cack it when co flats your raise but I can't see getting away from it overall.

It's ok to raise small pre, depending on who's behind.

Flop = check or bet small like 150-250
Turn = You should just call, let him keep bluffing or "valuebetting" his 7x or pocket 6s or w/e the hell he has
River=Cool. You said he's lag and has a stack so he's def got worses you can get value from and who knows he could make some awful call with worse

Wow ! I would have open raised A9o from the HJ if I had been playing limit 6 max.

But, I thought you needed to play tighter than that for SNGs.