Let's Assume Villian counts to 10 and check the river
Poker Stars $400.00 No Limit Hold'em - 6 players - View hand 693498
The Official DeucesCracked.com Hand History Converter
UTG: $775.00
MP: $260.70
CO: $447.70
Hero (BTN): $498.80
SB: $371.50
BB: $475.00
Pre Flop: ($6.00) Hero is BTN with Q 
9
1 fold, MP raises to $12, 1 fold, Hero calls $12, 2 folds
Flop: ($30.00) 8 
7 4 
(2 players)
MP checks, Hero bets $20.00, MP calls $20
Turn: ($70.00) 6 (2 players)
MP checks, Hero bets $50.00, MP calls $50
River: ($170.00) 2 (2 players)
MP bets $178.70, Hero folds
His PTR rating is about 37 which makes me inclined to think he is kind of mediocre. I only have about 50+ hands on him and haven't seen anything fancy from him.
30/23/10.3, AF=4, and cbetted flop 3 out of 3 times
I don't know if I should just jam the river if he checks. I really can't think of anything that can withstand such huge amounts of pressure. He is mediocre, but I don't think he's some leaky fish.
I'm not too sure if this guy will trap with a hand like top/medium set here on this drawy board. He seemed to be counting 10 seconds then check for flop and turn which may seem a little trappy IMO.
Given his aggression, I also don't really put many draws in his range, mostly weak pair type of hands
