Max Muncy and Mookie Betts hit first-pitch home runs to power the Los Angeles Dodgers past the last-place Colorado Rockies 5-2 on Tuesday night. The victory pushed the Dodgers' NL West lead to 5 1/2 games over San Diego, their largest of the season. Rookie right-hander Ryan Pepiot (1-0) started in place of Mitch White after being recalled from Triple-A Oklahoma City earlier in the day.