Party Poker No-Limit Hold'em, $ BB (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

BB ($45.46)
UTG ($43.72)
MP ($11.44)
CO ($52.85)
Hero ($26.05)
SB ($25.51)

Preflop: Hero is Button with K, 9. SB posts a blind of $0.10.
UTG calls $0.25, 1 fold, CO calls $0.25, Hero calls $0.25, SB (poster) completes, BB checks.

Flop: ($1.25) 4, 4, 5 (5 players)
SB checks, BB checks, UTG checks, CO checks, Hero checks.

Turn: ($1.25) J (5 players)
SB checks, BB checks, UTG checks, CO checks, Hero checks.

River: ($1.25) 9 (5 players)
SB checks, BB checks, UTG checks, CO checks, Hero bets $1, SB folds, BB folds, UTG folds, CO calls $1.

Final Pot: $3.25
Is this a bad river bet?