bet river after checking turn in 3bet pot

Posted 8 years, 6 months ago

Blinds: $0.05/$0.10 (6 Players) BN: $12.36
SB: $10.15 (Hero)
BB: $13.89
UTG: $10.22
MP: $10.79
CO: $10.00

Preflop ($0.15) Hero is SB with Q Q

2 folds, CO raises to $0.25, BN calls $0.25, Hero raises to $1.20, BB folds, CO folds, BN calls $0.95

Flop ($2.75) 7 9 2

Hero bets $1.30, BN raises to $2.70, Hero calls $1.40

Turn ($8.15) 7 9 2 4

Hero checks, BN checks

River ($8.15) 7 9 2 4 A

Hero checks, BN bets $3.89

37/21, aggr 38(19 hands) 4 tabling zoom
How often does he have an A here?