$5.50 PS: In game someone criticized my move then wouldn't elaborate

[big_d_awg]

Sorry this is long. I had only played in 3 hands prior to this. 1st hand AK doubled up. 2nd hand is a massive dumb ass move because I haven't been attacking enough lately get knocked down to 250. 3rd hand AK raises me to 750. This is the next hand after AK.

Let's forget 2nd hand. I was a dummy. Let's say I got to this point legitimately. Was it an awful move? I think it was correct. Please tell me what yall think.

PokerStars Tournament, Big Blind is t150 (6 handed) Converter on pregopoker.com

UTG (t4630)
Hero (t725)
CO (t1655)
Button (t3660)
SB (t1515)
BB (t1315)

Preflop: Hero is in UTG+1 with T[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/club.gif[/img]
<font color="gray">UTG folds</font>, <font color="red">Hero raises to t725 (All-in)</font>, <font color="gray">CO folds</font>, <font color="gray">Button folds</font>, <font color="gray">SB folds</font>, BB calls t575

Flop: (t1525) 9[img]/images/graemlins/club.gif[/img] 7[img]/images/graemlins/club.gif[/img] Q[img]/images/graemlins/spade.gif[/img] (2 players)


Turn: (t1525) 2[img]/images/graemlins/heart.gif[/img] (2 players)


River: (t1525) 5[img]/images/graemlins/heart.gif[/img] (2 players)


Results in gray below:
<font color="#f7f7f7">BB has 8s, 9s (a pair of Nines)</font>
<font color="#f7f7f7">Hero has Ts, Ac (high card Ace)</font>