2k runners, down to the last 100. Villain and I have a little history. One hand where I flatted his steal in the BB then check/raise bluffed the flop. He folded. Second hand I 3b him pre from OOP when he opened from CO and he jammed for about 35BB. 

He is running 18/17 over 66 hands. His steal % is 60% (6/10). His fold to 3b is 50% (1/2) and his AF is 2.0. With an Ace blocker I felt that this 3b would get him to fold enough to make it profitable. It's costing me 14,695 into a pot of 13,500 so it only needs to work 52% of the time to be break even and I'm pretty sure this player is folding more than that given his steal %. 

When we reach the flop I don't know whether to check flop or cbet. In hindsight I think I prefer a check to keep the pot small and if he checks back I can bet a lot of turns. As played I think I decided that if I bet the flop I have to bet scare card turns, which is what I did. On the river, should I go the whole way and rep AK by shoving? I only have about 50k left in my stack.

Poker Stars $3.00+$0.30 No Limit Hold'em Tournament – t1500/t3000 Blinds + t375 – 8 players – View hand 2176875

TournamentPokerEdge.com Hand History Converter

MP1: BB = 12.4, t37340
MP2: BB = 70.7, t212170
CO: BB = 47.0, t140899
BTN: BB = 19.1, t57157
Hero (SB): BB = 38.1, t114290
BB: BB = 15.7, t46978
UTG: BB = 20.0, t60137
UTG+1: BB = 26.2, t78508

Pre Flop: (t7500) Hero is SB with 5 A
4 folds, CO raises to t6000, 1 fold, Hero raises to t16195, 1 fold, CO calls t10195

Flop: (t38390) T 5 2 (2 players)
Hero bets t13820, CO calls t13820

Turn: (t66030) Q (2 players)
Hero bets t29015, CO calls t29015

River: (t124060) J (2 players)
Hero ???