$6 6max Stars - KK lvl1 Easy fold on river?

[blitzology]

Easy fold on river?


PokerStars Tournament, Big Blind is t20 (6 handed) Converter on pregopoker.com

UTG (t1610)
UTG+1 (t1240)
CO (t2010)
Button (t1220)
SB (t1450)
Hero (t1470)

Preflop: Hero is in BB with K[img]/images/graemlins/diamond.gif[/img] K[img]/images/graemlins/club.gif[/img]
<font color="gray">UTG folds</font>, <font color="gray">UTG+1 folds</font>, <font color="gray">CO folds</font>, <font color="gray">Button folds</font>, SB calls t10, <font color="red">Hero raises to t100</font>, SB calls t80

Flop: (t220) 3[img]/images/graemlins/club.gif[/img] 8[img]/images/graemlins/heart.gif[/img] 8[img]/images/graemlins/spade.gif[/img] (2 players)
SB checks, <font color="red">Hero bets t100</font>, SB calls t100

Turn: (t420) J[img]/images/graemlins/diamond.gif[/img] (2 players)
SB checks, <font color="red">Hero bets t270</font>, SB calls t270

River: (t960) 6[img]/images/graemlins/heart.gif[/img] (2 players)
<font color="red">SB bets t980 (All-in)</font>, Hero ?