hi,
looks like a kind of experimental line. I think its std until the river. His bet is super small and I don't think he would do it with just an ace high. I think its 7 or 6 or 9 maybe. I think calling is also fine.
iPoker - 125/250 NL - Holdem - 7 players
Hand converted by Holdem Manager 3
UTG: 13,198 (52.8 bb)
Hero (UTG+1): 11,525 (46.1 bb)
MP: 19,947 (79.8 bb)
CO: 12,505 (50 bb)
BTN: 7,144 (28.6 bb)
SB: 11,277 (45.1 bb)
BB: 25,848 (103.4 bb)
7 players post ante of 20, SB posts 125, BB posts 250
Pre Flop: (pot: 515) Hero has Q♥: A♣:
UTG raises to 1,000, Hero raises to 2,750, 5 folds, UTG calls 1,750
Flop: (6,015, 2 players) K♣: 7♥: 6♥:
UTG checks, Hero bets 2,406, UTG calls 2,406
Turn: (10,827, 2 players) T♦:
UTG checks, Hero checks
River: (10,827, 2 players) 9♣:
UTG bets 500, Hero raises to 6,349, fold
Spoiler
Results: 11,827 pot (0 rake)
Final Board: K♣: 7♥: 6♥: T♦: 9♣:
Hero mucks Q♥: A♣:: (High Card, Ace)
(Pre 0%)
Hero wins 11,827