$3 NLHE STT: 73 yes 73

BB: 4,036 (25.2 bb)
Hero (SB): 9,464 (59.2 bb)

Preflop: Hero is SB with
Hero raises to 340, BB calls 180

Flop: (720) :Jd: :Th: (2 players)
BB checks, Hero bets 340, BB calls 340

Turn: (1,400) (2 players)
BB checks, Hero bets 680, BB calls 680

River: (2,760) (2 players)
BB checks, Hero bets 2,760, BB folds

Your play looks good to me.

Specify the stack in the big blind! Bids 80-160! And why being on the position of SB, BB goes first? SB first word, and then word of BB!