ダルビッシュ有
On November 15, 2009, it was announced that Murphy would take a tryout for the Japanese team Chiba Lotte Marines. In 2010 Murphy led the Chiba Lotte Marines to the Japan World Series helping the team to win the championship along with being one of the top pitchers starting off the year undefeated 6-0 until his first loss against Yu Darvish. In 2010 Murphy eventually held one of the best records finishing with 12 wins and 6 losses, with a better record than most in Japan including pitchers like Yu Darvish, with a 3.75ERA on the season. He played with the Marines in 2010 and 2011, appearing in 48 games, with 30 starts. In both seasons with the Chiba Lotte Marines he finished with a combined 14–11 record and an overall 3.81 ERA. He made history in 2010 by winning 6 consecutive games in Japan without a loss.