KK is this Standard

[Robbie01]

I wanted to protect my hand is this fine?

PokerStars Tournament, Big Blind is t20 (9 handed) Converter on pregopoker.com

UTG (t1500)
UTG+1 (t1140)
MP1 (t1500)
MP2 (t1500)
MP3 (t1920)
Hero (t1500)
Button (t1460)
SB (t1480)
BB (t1500)

Preflop: Hero is in CO with K[img]/images/graemlins/club.gif[/img] K[img]/images/graemlins/diamond.gif[/img]
<font color="gray">UTG folds</font>, UTG+1 calls t20, <font color="gray">MP1 folds</font>, <font color="gray">MP2 folds</font>, MP3 calls t20, <font color="red">Hero raises to t120</font>, Button calls t120, <font color="gray">SB folds</font>, <font color="gray">BB folds</font>, UTG+1 calls t100, MP3 calls t100

Flop: (t510) 7[img]/images/graemlins/diamond.gif[/img] J[img]/images/graemlins/spade.gif[/img] 5[img]/images/graemlins/spade.gif[/img] (4 players)
UTG+1 checks, MP3 checks, <font color="red">Hero bets t350