Masahiro Yamamoto fanned eight batters in his first complete-game victory of the season to lift the Chunichi Dragons over the Yakult Swallows 4-1 at the Nagoya Dome on Saturday.

Yamamoto allowed just one run on five hits and walked one for his fourth win in 15 outings.

Yamamoto also hit an RBI single in Chunichi's two-run fifth as Yakult lost its third straight and fell to .500.