Hero is second of 10 (10 handed ft) with 330k at 4k/8k/1k ante.
Average stack is 200k but chipleader has almost half chips in play(had about 950k). Folds to hero on btn i min r to 16k with 89ss, bb chipleader 3 bets to 40k.This is where I believe I made my biggest mistake in the hand by flatting his 3-bet( he was playing loose aggressive but very well from 18 players down when i joined his table).I really shouldn't have even opened here given that he is gonna play back here a lot given our stack sizes and of course there are ICM implications. I really hate pf here! I had been 3 betting aggressively form final 3 tables down and just chipped up nicely without ever being AI. Chipleader and myself hadnt clashed in any pot up to this point.He views me as aggressive, competent thinking player.

But anyways flop(94k) is 10hJs3s. Villain bets 38k hero calls. Turn(170k) is 7s giving me a flush(Must be a scare card for him as flush and straights get there).Villain checks. hero bets 53k, villain calls. River( 276k) is Ad. Villain checks, hero tanks and jams 200k AI.Villain calls. FINAL BOARD 10hJs3s7sAd

Aside form preflop (which i know i butchered) ,is the rest of the hand pretty standard here? Given that villain is good thinking aggressive player, what worse hands can he call me with on the river?I mean, 89suited ,KQ, any flush gets there by the river.I don't think i'm ever bluffing in this spot so is there ever merit to checking river?I think maybe 70-90k river bet is probably best here looking back as he will be getting great odds to call like any set,KQ with a spade ,AJ 2 pair hands.(I would bet fold in this spot although he probably is capable of bluff shoving with naked As).

Villain snaps river and shows AKss for the nuts.