Hideaki Wakui threw 7 1/3 shutout innings and Takeya Nakamura and Hiroyuki Takagi drove in a run apiece, helping first-place Seibu Lions top the Tohoku Rakuten Eagles 2-1 to secure a berth in the two-stage Pacific League series with their fifth win in a row.

News photoSeibu Lions players react to the fans at Invoice Seibu Dome after they clinched a playoff berth with a 2-1 victory over the Tohoku Rakuten Eagles on Saturday. KYODO PHOTO

In the sixth, Nakamura drew a bases-loaded walk followed by Takagi's RBI single off Yasuhiro Ichiba (6-14), who surrendered two runs on five hits in six innings.

Hawks 4, Marines 0