Tatsuhiro Tamura opened the scoring with a three-run home run and right-hander Atsuki Taneichi earned his first career win as the Chiba Lotte Marines beat the Tohoku Rakuten Eagles 4-2 on Monday.

In front of crowd of more than 28,200 at Rakuten Seimei Park, Tamura went deep into the left field stands in the second inning against right-hander Hiroki Kondo (0-2).

Taneichi (1-0) allowed two runs on six hits and two walks, while striking out four over five innings. He was making his first start of the season, having played eight games so far as a reliever.