NL4; SH: 99 agnst multitabler

IPoker, $0.02/$0.04 No Limit Hold'em Cash, 6 Players
Poker Tools Powered By Holdem Manager - The Ultimate Poker Software Suite.

Hero (BTN): $4.38 (109.5 bb)
SB: $5.04 (126 bb)
BB: $5.15 (128.8 bb)
UTG: $2.12 (53 bb)
MP: $4.85 (121.2 bb)
CO: $0.43 (10.8 bb)

Preflop: Hero is BTN with K Q
2 folds, CO calls $0.04, Hero raises to $0.18, 2 folds, CO calls $0.14

Flop: ($0.42) J 3 7 (2 players)
CO checks, Hero bets $4.20 and is all-in, CO calls $0.25

Turn: ($0.92) 3 (2 players, 1 is all-in)
River: ($0.92) 2 (2 players, 1 is all-in)

Results: $0.92 pot ($0.06 rake)
Final Board: J 3 7 3 2
Hero mucked K Q and won $0.86 ($0.43 net)
CO showed K T and lost (-$0.43 net)

Our opponent is a multitabler.

Without any specific information, is my play standard?