Villian is 17/14 over 608 hands, with little difference in PFR by position
Flop cbet 76% Afq 50%
Turn cbet 47% (7/15) Afq 38%
River cbet 50% (1/2) Afq 71% (15/21) (this looks rather high)

I take the passive line figuring I will pick up quite a bit of extra value if I flop TPTK given villian's relatively wide EP/MP PFR range and tendency to barrel, and apparently make stabs on the river. The turn and river bet has me fearing AQ but I stick to my plan, figuring I'm still ahead of his barreling range. Thoughts on this line?

Merge - $0.10 NL - Holdem - 7 players
Hand converted by PokerTracker 3

CO: $10.10
Hero (BTN): $11.45
SB: $6.90
BB: $10.00
UTG: $7.45
UTG+1: $11.23
MP: $5.92

SB posts SB $0.05, BB posts BB $0.10

Pre Flop: ($0.15) Hero has K A

fold, UTG+1 raises to $0.30, fold, fold, Hero calls $0.30, fold, fold

Flop: ($0.75, 2 players) A 3 8
UTG+1 bets $0.40, Hero calls $0.40

Turn: ($1.55, 2 players) Q
UTG+1 bets $1.00, Hero calls $1.00

River: ($3.55, 2 players) 9
UTG+1 bets $1.80, Hero calls $1.80

I like this line. You underrepresented your hand by just flat calling, so villain could be putting you on a weaker ace or something like QJ. Would not be surprised if villain wound up having AJ or AT here.

I guess we can call the smallish river bet but we wont be good too often. People dont often fire three streets with hands that cant beat TP and i think a lot of people at this level will even check AJ here.

Don't forget about villain's post-flop aggression stats. Not an expert, but they seem kinda high to me.

Given that, I think his range remains wide enough that the stuff we lose to (AA, 88, AQ, maybe 99) is less than 50% of the possible combinations.

OTR we only need to be ahead about 28% of the time to make that call profitable, correct?

5.35:1.8 = 1.8/(7.15) ~= 2/7 ~= 28%. (25.2% to be more accurate)

Not an expert on the subject but my turn and river cbet numbers are slightly higher than this villain's and in normal circumstances i wouldn't be the type to barrel 3 streets (or even 2 in some cases) with top pair medium kicker. That being said i still find it hard to give him credit for monsters because of his high aggro level and getting 3-1 makes it pretty sweet.

Ive never used the Agf% to be honest as i always hear people saying they dont tend to be that accurate and take ages to converge.

I'm never folding the river.

I think rivers probably a fold, since Villain never has worse for value and don't bluff rivers enough especially on A high boards.

I'm calling river but expecting a chop or he has AQ. I just can't fold here with his sizing throughout

Interestingly enough, he showed up with KQo here.