Wataru Karashima threw one-run ball over seven innings and Kazuya Fujita had a two-run go-ahead double as the Tohoku Rakuten Golden Eagles routed the Seibu Lions 7-1 on Friday night.
Karashima (7-9) scattered six hits, struck out eight and walked none in front of a crowd of 23,121 at Kobo Stadium.
Ryohei Fujiwara (2-5) was chased in 4-1/3 innings of the loss.