Edit: This is supposed to be in the midstakes MTT forum. Can someone please move it?

So it cost me 20bb to win 112bb. So I need to have the best hand 17,85% of the time but surely one of the two villains has to have a flush more often than the odds I'm getting? Or is this a bad fold?

PokerStars - 150/300 Ante 30 NL - Holdem - 9 players
Hand converted by PokerTracker 4

MP+2: 89.02 BB (VPIP: 20.25, PFR: 12.66, 3Bet Preflop: 6.45, Hands: 79)
CO: 105.51 BB (VPIP: 18.99, PFR: 11.39, 3Bet Preflop: 6.45, Hands: 79)
BTN: 46.15 BB (VPIP: 6.25, PFR: 6.25, 3Bet Preflop: 0.00, Hands: 16)
SB: 16.21 BB (VPIP: 30.38, PFR: 12.82, 3Bet Preflop: 6.06, Hands: 79)
BB: 44.61 BB (VPIP: 36.71, PFR: 15.19, 3Bet Preflop: 3.03, Hands: 79)
UTG: 51 BB (VPIP: 25.32, PFR: 16.46, 3Bet Preflop: 2.94, Hands: 79)
UTG+1: 97.19 BB (VPIP: 27.85, PFR: 8.86, 3Bet Preflop: 7.14, Hands: 79)
MP: 21.36 BB (VPIP: 23.53, PFR: 11.76, 3Bet Preflop: 6.25, Hands: 34)
Hero (MP+1): 45.46 BB

9 players post ante of 0.1 BB, SB posts SB 0.5 BB, BB posts BB 1 BB

Pre Flop: (pot: 2.4 BB) Hero has K K

fold, fold, fold, Hero raises to 2.19 BB, MP+2 calls 2.19 BB, CO calls 2.19 BB, fold, fold, BB calls 1.19 BB

Flop: (10.16 BB, 4 players) 4 9 2
BB bets 3 BB, Hero calls 3 BB, fold, CO calls 3 BB

Turn: (19.16 BB, 3 players) K
BB bets 3 BB, Hero raises to 11 BB, CO calls 11 BB, BB calls 8 BB

River: (52.16 BB, 3 players) Q
BB checks, Hero checks, CO bets 20 BB, BB calls 20 BB, fold

Fold

Raise Flop, raise Turn bigger.

this and fold river