Yoshihiro Maru drilled a tiebreaking three-run home run off reliever Randy Williams in the sixth inning and the Hiroshima Carp beat the Seibu Lions 6-2 on a misty night in Hiroshima Prefecture on Monday.
The Central League-leading Carp won their second straight after losing their first four games in interleague play.
Lions starter Ryohei Fujiwara, who was making his first career start in his seventh year, got into trouble with a one-out triple to center to Shogo Kimura in the sixth.