Кулер или плохо сыграно?

MP2: 79 BB
CO: 150 BB
BTN: 153.50 BB
Hero (SB): 100 BB
BB: 35.50 BB
UTG: 103 BB
UTG+1: 93 BB
MP1: 99 BB

Pre-Flop: Q 9 dealt to Hero (SB)
UTG folds, UTG+1 calls 1BB, MP1 folds, MP2 calls 1BB, CO folds, BTN calls 1BB, Hero calls 0.5BB, BB checks

Flop: (5BB) Q 5 K (5 Players)
Hero checks, BB checks, UTG+1 checks, MP2 bets 1BB, BTN calls 1BB, Hero calls 1BB, BB calls 1BB, UTG+1 folds

Turn: (9BB) Q (4 Players)
Hero checks, BB checks, MP2 bets 1BB, BTN calls 1BB, Hero raises to 9.5BB, 2 folds, BTN calls 8.5BB

River: (29BB) 6 (2 Players)
Hero bets 19.5BB, BTN raises to 74BB, Hero calls 54.5BB

Results: 177BB Pot (8.5BB Rake)
BTN showed 5 5 and WON 168.5BB (+83BB NET)
Hero mucked Q 9 and LOST (-85BB NET)