TPTK vs. mattg

[TheNewf]

Blah this is such a sick spot from the maniac rebuyfest. Thoughts on all postflop streets?

PokerStars Game #10019557754: Tournament #49451143, $250+$20 Hold'em No Limit - Level XV (2000/4000) - 2007/05/20 - 18:30:26 (ET)
Table '49451143 5' 9-max Seat #8 is the button
Seat 1: mattster24 (191340 in chips)
Seat 2: gbmantis (128533 in chips)
Seat 4: SirWatts (301152 in chips)
Seat 5: mattg1983 (322408 in chips)
Seat 6: gunning4you (387023 in chips)
Seat 7: GRinDer444 (431142 in chips)
Seat 8: ahh_snap (128200 in chips)
Seat 9: No10No10Ho! (155487 in chips)
mattster24: posts the ante 200
gbmantis: posts the ante 200
SirWatts: posts the ante 200
mattg1983: posts the ante 200
gunning4you: posts the ante 200
GRinDer444: posts the ante 200
ahh_snap: posts the ante 200
No10No10Ho!: posts the ante 200
No10No10Ho!: posts small blind 2000
mattster24: posts big blind 4000
*** HOLE CARDS ***
Dealt to SirWatts [Ad Ks]
gbmantis: folds
SirWatts: raises 7000 to 11000
mattg1983: calls 11000
gunning4you: folds
GRinDer444: folds
ahh_snap: folds
No10No10Ho!: folds
mattster24: folds
*** FLOP *** [Kc 9s 6h]
SirWatts: bets 20000
mattg1983: raises 35550 to 55550
SirWatts: calls 35550
*** TURN *** [Kc 9s 6h] [5d]
SirWatts: checks
mattg1983: bets 60550
SirWatts: calls 60550
*** RIVER *** [Kc 9s 6h 5d] [Jc]
SirWatts: checks
mattg1983: bets 195108 and is all-in
SirWatts: ?