No Limit Hold'em Tournament T100/T200
Buy-in: MDS $1,000,001 GTD
Winning Poker Network
9 players

Stacks:
UTG - UTG (T9,114)
UTG+1 - Hero (T10,577)
UTG+2 - UTG+2 (T10,000)
MP - MP (T28,113)
MP2 - MP2 (T11,549)
CO - CO (T17,578)
BTN - BTN (T8,350)
SB - SB (T23,062)
BB - BB (T19,117)

Preflop: (T480, 9 players) Hero is UTG+1 with Ah Ad
1 fold, Hero raises to T400, 1 fold, MP calls T400, 5 folds

Flop: Js 6c 3d (T1,280, 2 players - Hero: T10,157, MP: T27,693)
Hero bets T800, MP calls T800

Turn: Jc (T2,880, 2 players - Hero: T9,357, MP: T26,893)
Hero bets T1,200, MP raises to T3,000, Hero calls T1,800

River: 6d (T8,880, 2 players - Hero: T6,357, MP: T23,893)
Hero checks, MP raises to T23,893 (all-in), 1 fold, Uncalled bet of T23,893 returned to MP

Total Pot: T8,880
MP mucks

MP wins T8,880

What do you think about this fold, knowing that the villain is a calling station that never raised before ?