DENVER (AP) — Justin Morneau tied a season high with six RBIs, including five as part of an eight-run first inning against spot starter Carlos Frias, and the Colorado Rockies routed the NL West-leading Los Angeles Dodgers 16-2 on Wednesday.

Morneau hit a three-run homer and a two-run single in the opening frame as the last-place Rockies chased Frias (0-1) from the game after two outs. Morneau and Carlos Gonzalez are the only Rockies players to drive in five runs in an inning.

Charlie Blackmon went 5 for 5, including a solo homer, as the Rockies took two of three from the Dodgers. Los Angeles began the day with a three-game division lead over San Francisco.

Morneau had three hits and a sacrifice fly, raising his average to .320 and leaping over Pittsburgh’s Josh Harrison for the NL batting lead.

Jorge De La Rosa (14-11) gave up two hits in six scoreless innings to improve to 10-2 at home this season.