Rookie Daichi Osera tossed eight innings of two-run ball Friday, leading the Hiroshima Carp in a 7-2 rout over the Yomiuri Giants in the opener of a three-game series.

Brad Eldred, Ryosuke Kikuchi and Tetsuya Kokubo each homered and the Central League front-running Carp, who are 20-0 this season when leading after six innings, banged out 12 hits in support of the 22-year-old Osera at Tokyo Dome.

The Giants, who have fallen into third place, have lost a season-worst five in a row.