Villain is a 15/14 reg over 187 hands, cbet flop 63%, cbet turn 67%, AF 2, AFq 45%:

PokerStars - $0.50 NL - Holdem - 8 players
Hand converted by PokerTracker 3

CO: $51.25
Hero (BTN): $50.00
SB: $82.04
BB: $22.10
UTG: $51.25
UTG+1: $17.85
MP: $22.73
MP+1: $52.62

SB posts SB $0.25, BB posts BB $0.50

Pre Flop: ($0.75) Hero has T A

UTG raises to $1.50, fold, fold, fold, fold, Hero calls $1.50, fold, fold

Flop: ($3.75, 2 players) 5 Q A
UTG bets $2.50, Hero calls $2.50

Turn: ($8.75, 2 players) A
UTG bets $6.00, Hero calls $6.00

River: ($20.75, 2 players) 8
UTG bets $11.00, fold

UTG wins $19.82

187 hands does not equal a reg

looks fine

No, but the stats do.

I'm not going to wait 500+ hands before I make my decision on whether someone is likely to be a competent reg, a bad reg or a fish, it would take ages to get samples of that size. I can normally tell after 10 to 20 hands, and certainly by about 80 hands or more.

i'd fold PF since AT is easily dominated vs UTG raise (his stats are also kinda solid). but as played i'm folding on the river.

think ATs00ted is fine with the button

sorry, i missed it's ATs... but anyways... isn't our river decission "to call or not to call" so damn hard exactly because of this T kicker?

Yeah, I'd muck ATo pre-flop in this spot, but I think ATs is ok.

This.

yeah, in this particular spot that T kicker sucks, but AtS is a great hadn and we're always IP and can win in a low of different ways on different boards

I think the villain's half pot river bet is to try and extract a bit more value from worse Aces but it doesn't commit him if I raise all-in with a full house.

fine with the fold on the river

if he had AK here he wouldn't fold anyway if someone raised him. Are you really that nitty you would fold AK to a raise?

Can anyone tell me why this line is fine if he were to fold to a blank on the river?

If you're going to fold to a blank, why would we call turn?

infomation. he wasnt afraid to fire a 3rd barrel after we call the turn with 2 aces on the board. we know we are beat here, but not nesscessarly on the turn

I would be mucking AK to a significant raise here, yes. This is because I am more likely to be getting raised by a slow-played full house that filled up on the turn than by a worse Ace that only decided to raise on the river instead of on the turn where an Ace may be more likely to raise.