Yuki Karakawa became the second Chiba Lotte pitcher in as many days to throw a shutout, leading the Marines to a 3-0 win over the Seibu Lions on Wednesday.
Karakawa (1-1) struck out eight and scattered six hits in a 117-pitch outing at QVC Marine Field. Seibu lost its third straight game.
Saburo Omura hit a two-run double in the first inning among his three hits off Kazuyuki Hoashi (1-1). Takashi Ogino added a sacrifice fly in the fifth.