TOKOROZAWA, Japan (Interstat) — Kohei Arihara pitched six innings of one-run ball, and the Hokkaido Nippon Ham Fighters backed him with 12 hits in a 7-1 victory over the Saitama Seibu Lions on Sunday afternoon, Sept. 13, 2026, at Seibu Dome. Arihara allowed seven hits, one earned run and struck out four to improve to 7-7. Natsuki Takeuchi took the loss and fell to 11-7. Taiki Narama hit a solo home run in the first, Kotaro Kiyomiya added a solo shot in the sixth, and Tatsuki Mizuno went 3 for 4 with one RBI for Nippon-Ham, which also got two sacrifice hits. Tyler Nevin homered for Seibu and finished 2 for 4. Wataru Matsumoto threw two scoreless innings of relief with four strikeouts, while Naoki Miyanishi struck out two in a scoreless inning for the Fighters. Nippon-Ham improved to 72-56-3. Seibu dropped to 73-54-4. The game drew 27,541 and lasted 3 hours, 5 minutes.