Yoshinobu Yamamoto threw six scoreless innings, rookie Andy Pages hit a two-run homer as part of a five-run second inning, and the Los Angeles Dodgers beat the Arizona Diamondbacks 8-0 on Wednesday night. Yamamoto (3-1) continues to pitch well in his first big-league season after signing a $325 million, 12-year deal during the offseason. The righty gave up five hits and two walks, striking out five.