I think turn raises are generally underbluffed at these stakes. Given the call out of the BB pre flop, and this low run out, I think sets are a decent part of his range which pushed me towards folding. Also sizing I think pushes him more towards sets than flush draws, but not certain enough about that to put much weight on it.
Ignition - $0.25 NL (6 max) - Holdem - 5 players
Hand converted by PokerTracker 4
BB: 101.4 BB
UTG: 196.6 BB
Hero (CO): 105.84 BB
BTN: 105.32 BB
SB: 99 BB
SB posts SB 0.4 BB, BB posts BB 1 BB
Pre Flop: (pot: 1.4 BB) Hero has A
8
fold,
Hero raises to 3 BB,
fold,
fold, BB calls 2 BB
Flop: (6.4 BB, 2 players) A
3
4
BB checks,
Hero bets 3.04 BB, BB calls 3.04 BB
Turn: (12.48 BB, 2 players) 6
BB checks,
Hero bets 8 BB,
BB raises to 21.96 BB,
Hero ???