70 FO 99 BvB fill on river

He's running 29/17 but only 15 hands, no big pots/showdowns. thoughts all streets?

No-Limit Hold'em Tournament, 20/40 Blinds (6 handed) - Hold'em Manager Converter Tool from FlopTurnRiver.com

saw flop

UTG (t4196)
MP (t1405)
CO (t4000)
Button (t5042)
Hero (SB) (t3565)
BB (t5545)

Hero's M: 59.42

Preflop: Hero is SB with 9, 9
4 folds, Hero bets t100, BB calls t80

Flop: (t240) 6, 5, 6 (2 players)
Hero bets t120, BB calls t120

Turn: (t480) 5 (2 players)
Hero bets t240, BB calls t240

River: (t960) 5 (2 players)
Hero bets t720, BB raises t5065 (All-In), Hero ?

Dumb spot, I'd play the same up to the river but I don't know about betting, especially that big. Seems like 5x/6x make up a bigger part of his range than 77/88/missed draws/Ax that hero call you, especially since he would have had to call with a draw on a double paired board. I either bet/fold a lot smaller or check/soulread.

yeah I was sort of trying to make it look bluffy hoping maybe he'd call with like 33 or do something crazy with a draw

I like the river sizing a lot at lower stakes, but I wouldn't be expecting the average player in the FTP $69's to be calling to chop very much or get out of line with some draw when you bet 720

I'm curious about preflop and flop tho; I generally will go a little bigger