The usually formidable Yomiuri Giants had a rough time hitting home runs last week.
Yoshiyuki Kamei and company made up for it by hitting a week's worth in one night.
Hayato Sakamoto got the ball rolling with a leadoff shot, Kamei went deep twice and Yoshitomo Tani and Alex Ramirez also homered as the Central League leaders cruised to their fourth straight win, an 8-3 victory over the Tohoku Rakuten Golden Eagles in front of 45,835 fans on Monday at Tokyo Dome.