Hey, i'm pretty confident about the flop check, but unsure about turn.
what do you think? thanks!

BTN: 85.5 BB
SB: 270 BB
Hero (BB): 125.5 BB
UTG: 233 BB
CO: 101.5 BB

SB posts SB 0.5 BB, Hero posts BB 1 BB

Pre Flop: (pot: 1.5 BB) Hero has Kc Kd
fold, CO raises to 2.5 BB, BTN calls 2.5 BB, fold, Hero raises to 11 BB, fold, BTN calls 8.5 BB

Flop : (25 BB, 2 players) Jh Ah 9h
Hero checks, BTN checks

Turn : (25 BB, 2 players) 9c
Hero checks, BTN bets 11 BB, Hero calls 11 BB

River : (47 BB, 2 players) 2d
Hero checks, BTN bets 37 BB, fold

BTN wins 45 BB