20/180 - good thought process or spew?

[Bikini Wax]

Reads: I've seen villain play AK very passive on a similar board... my general feeling about the hand was that AT wasnt in his range pf, so maybe a set... but with the size of my cbet he seemed to raise to keep himself enough FE...
thoughts?

PokerStars Game #11379825453: Tournament #57732018, $20+$2 Hold'em No Limit - Level IV (50/100) - 2007/08/08 - 15:50:02 (ET)
Table '57732018 16' 9-max Seat #2 is the button
Seat 1: Hicksd (2200 in chips)
Seat 2: Rendall 11 (3270 in chips)
Seat 3: camata (820 in chips)
Seat 4: Mlyder (1885 in chips)
Seat 5: stickydeck (1885 in chips)
Seat 6: Kurdistan47 (3962 in chips)
Seat 8: ReyDean (1838 in chips)
Seat 9: Skill Game (2410 in chips)
camata: posts small blind 50
Mlyder: posts big blind 100
*** HOLE CARDS ***
Dealt to Skill Game [Kh Js]
stickydeck: folds
Kurdistan47: folds
ReyDean: folds
Skill Game: raises 200 to 300
Hicksd: folds
Rendall 11: calls 300
camata: folds
Mlyder: folds
*** FLOP *** [8s Tc Ah]
Skill Game: bets 350
Rendall 11: raises 500 to 850
Skill Game: raises 1260 to 2110 and is all-in