Asamura was offered a multi-year deal after the 2017 season, but turned it down for a one-year contract. He told reporters during a press conference on December 5 that he went with a one-year contract because he wanted to keep himself on his toes.
Source: Daily Sports 12/5/2017
September 28 vs Softbank at YafuOku Dome – Asamura recorded the 1,000th hit of his career off Hayato Terahara in the seventh inning.
Source: Nikkan Sports 9/28/2017
May 6 vs Rakuten at Rakuten Seimei – Asamura played in his 1,000th career game and became the 491st player in NPB history to reach the milestone.