***** 888poker Hand History for Game 180453834 *****
$1,200/$2,400 Blinds No Limit Holdem - *** 17 08 2018 19:23:39
Tournament #126501263 $4.50 + $0.50 - Table #15 9 Max (Real Money)
Seat 5 is the button
Total number of players : 7
Seat 1: kirkinner123 ( $81,781 )
Seat 2: Mirale23 ( $68,959 )
Seat 3: Curl_1_Out ( $117,156 )
Seat 5: J_Gama ( $35,126 )
Seat 6: Mortek ( $53,162 )
Seat 7: Elasmobranch ( $53,169 )
Seat 9: woski95 ( $49,799 )
woski95 posts ante [$300]
J_Gama posts ante [$300]
Curl_1_Out posts ante [$300]
Elasmobranch posts ante [$300]
kirkinner123 posts ante [$300]
Mirale23 posts ante [$300]
Mortek posts ante [$300]
Mortek posts small blind [$1,200]
Elasmobranch posts big blind [$2,400]
** Dealing down cards **
Dealt to Elasmobranch [ Tc, Qh ]
woski95 folds
kirkinner123 folds
Mirale23 folds
Curl_1_Out raises [$4,800]
J_Gama folds
Mortek folds
Elasmobranch calls [$2,400]
** Dealing flop ** [ Qc, 5c, Ad ]
Elasmobranch checks
Curl_1_Out bets [$4,800]
Elasmobranch calls [$4,800]
** Dealing turn ** [ 6c ]
Elasmobranch checks
Curl_1_Out bets [$8,500]
Elasmobranch folds
** Summary **
Curl_1_Out did not show his hand
Curl_1_Out collected [ $22,500 ]

As per dynamic mentioned in title is this fold to tight on turn with his bet sizing

Looks fine imo.