50NL: Top 2: How much to bet on the river vs TAG/nit?

No-Limit Hold'em, $0.50 BB (5 handed) - Hold'em Manager Converter Tool from FlopTurnRiver.com

BB ($125.13)
Hero (UTG) ($51.48)
MP ($46.25)
Button ($59.82)
SB ($50.37)

Preflop: Hero is UTG with Q, A
Hero bets $2, 1 fold, Button calls $2, 1 fold, BB calls $1.50

Flop: ($6.25) 4, Q, 5 (3 players)
BB checks, Hero bets $4, Button calls $4, 1 fold

Turn: ($14.25) A (2 players)
Hero bets $8, Button calls $8

River: ($30.25) 9 (2 players)
Hero ???

villain was 19/16/2 over 400 hands. 3bet 5%.
My stats are almost the same.
No particular history between the 2 of us.
On the river there are only some hands he can have: sets (4 or 5 only), AK/Qx.
How much to bet on the river? $15? Should we c/f river?

Not sure what's up with your turn sizing when you wont alter his continuing range much if at all by betting like 11 at least.

No idea why w'ed ever c/f river just bet like 2/3rds and hope to get called by KQ QJs etc random Ax if he's floated the flop.

A2s/A3s peels flop. Just bet.

Originally Posted by Carroters

Not sure what's up with your turn sizing when you wont alter his continuing range much if at all by betting like 11 at least.

yea you wanna bet bigger on the turn so you can ship on the river. you probably need to pay more attention to stack: pot ratios

turn 10$, river now 23$

11 on turn as played i d flip a coin to decide between 17 and 21

^^ I like 21

Yup, you guys are right turn sizing is bad. Thanks!