Yoshinobu Yamamoto throws 6 scoreless as Dodgers top D-backs

Yoshinobu Yamamoto threw six scoreless innings to help lead the Los Angeles Dodgers to an 8-0 win over the Arizona Diamondbacks on Wednesday in Phoenix.

Yamamoto (3-1) gave up five hits and two walks while striking out five. The rookie lowered his ERA from 3.54 to 2.91, and he hasn't lost a game since his debut on March 21.

Mookie Betts went 3-for-5 and drove in two runs while Andy Pages and Will Smith homered for the Dodgers, who have won eight of their past 10 games.

Los Angeles broke on top with a five-run second inning. Enrique Hernandez drew a one-out walk and Pages followed with a two-run shot off Arizona starter Jordan Montgomery, his third long ball of the year.

Miguel Rojas then doubled, Chris Taylor walked, and Austin Barnes drove in the third Dodgers run on a double. Betts followed with a two-run single to increase Los Angeles' lead to 5-0.

Smith led off the top of the third with his fourth home run of the year.

Montgomery (1-2) was pulled after finishing the inning. He went three innings and allowed six runs on six hits with three walks, striking out one. The left-hander was replaced with 22-year-old Blake Walston, who made his major league debut.

Walston held the Dodgers scoreless until the seventh. Freddie Freeman walked to open the inning and Teoscar Hernandez hit a one-out single. Enrique Hernandez walked to load the bases. Walston struck out Pages but walked Rojas, forcing in Freeman from third.

Brandon Hughes replaced the rookie, but he walked Taylor to put the Dodgers up 8-0.

Walston threw 3 2/3 innings and allowed three hits, two runs and four walks while striking out five.

Yamamoto was pulled for reliever J.P. Feyereisen in the bottom of the seventh.

Feyereisen and Gus Varland combined for three scoreless innings in relief. Varland retired Jake McCarthy on a groundout to end the game.