interesting hand

PokerStars Game #20805977399: Tournament #110967163, $10+$1 Hold'em No Limit - Level III (25/50) - 2008/09/29 23:51:51 ET
Table '110967163 25' 6-max Seat #5 is the button
Seat 1: ti jo you (5847 in chips)
Seat 2: fish_spum (2685 in chips)
Seat 3: kamaksan (2625 in chips) is sitting out
Seat 4: linobill (4050 in chips)
Seat 5: pleazzzzzzzz (3825 in chips)
Seat 6: Broonthehoon (1968 in chips)
Broonthehoon: posts small blind 25
ti jo you: posts big blind 50
*** HOLE CARDS ***
Dealt to pleazzzzzzzz
fish_spum: folds
kamaksan: folds
linobill: calls 50
pleazzzzzzzz: raises 75 to 125
Broonthehoon: folds
ti jo you: calls 75
linobill: calls 75
*** FLOP ***
ti jo you: checks
linobill: checks
pleazzzzzzzz: checks
*** TURN ***
ti jo you: checks
linobill: bets 150
pleazzzzzzzz: calls 150
ti jo you: calls 150
*** RIVER ***
ti jo you: checks
linobill: bets 400
pleazzzzzzzz said, "u got pocket nines dont you"
pleazzzzzzzz: calls 400
ti jo you: calls 400
*** SHOW DOWN ***
linobill: shows (a full house, Nines full of Sixes)
pleazzzzzzzz: mucks hand
ti jo you: mucks hand
pleazzzzzzzz said, "damn"
pleazzzzzzzz said, "i had kings"
linobill collected 2050 from pot
*** SUMMARY ***
Total pot 2050 | Rake 0
Board
Seat 1: ti jo you (big blind) mucked
Seat 2: fish_spum folded before Flop (didn't bet)
Seat 3: kamaksan folded before Flop (didn't bet)
Seat 4: linobill showed and won (2050) with a full house, Nines full of Sixes
Seat 5: pleazzzzzzzz (button) mucked
Seat 6: Broonthehoon (small blind) folded before Flop

i guessed his hand right? idk can i fold that?