DENVER -- In the Colorado Rockies' 21st season, Jorge De La Rosa is bidding to become the first pitcher in franchise history to lead the National League in wins.
De La Rosa earned his 16th victory Wednesday night, tying his career high, as the Colorado Rockies beat the Los Angeles Dodgers 7-5.
The win was De La Rosa's sixth straight and tied him for the league lead with Washington's Jordan Zimmermann, who also recorded his 16th victory Wednesday.
De La Rosa (16-6) held the Dodgers to two runs in six innings.
Rockies reliever Manuel Corpas had a big hand in the victory. After Matt Belisle gave up three runs in the eighth, cutting Colorado's lead to two runs, Corpas entered with runners on first and third and struck out pinch hitters Carl Crawford and Yasiel Puig.
Colorado closer Rex Brothers gave up a leadoff walk in the ninth but got Michael Young to hit into a game-ending double play to pick up his 15th save.
The loss ended a six-game winning streak for the Dodgers, who are 36-7 since the All-Star break and had won 19 of their previous 23 games against N West opponents.
In his first start for the Dodgers, Edinson Volquez (9-11) went four innings and gave up four runs on six hits. In six starts against the Rockies this season, the first five with San Diego, Volquez is 0-5 with a 12.43 ERA.
Michael Cuddyer went 2-for-2 with a sacrifice fly and intentional walk and took over the NL batting lead with a .331 average, one point ahead of Atlanta's Chris Johnson.
It was a sloppy game for the Dodgers, who were guilty of three wild pitches, a passed ball, a throwing error and a run-scoring balk. Third baseman Juan Uribe failed to tag out Josh Rutledge in a rundown that helped the Rockies score a run in the third.
Josh Rutledge went 3-for-4 with a triple and three runs for Colorado.
Rockies third baseman Nolan Arenado left the game in the fifth with a right thumb contusion and is listed day-to-day.
NOTES: Dodgers LHP Chris Capuano will start Friday at Cincinnati in place of LHP Hyun-Jin Ryu, who has mid-back stiffness. Manager Don Mattingly said the move was more of a precaution, and Ryu will start next Tuesday or Wednesday against Arizona. ... Puig left Monday's game with discomfort behind his right knee, and he didn't play Tuesday. ... Rockies RHP Tyler Chatwood came through a bullpen session fine and will start Saturday at San Diego. He came out of his last start Sunday with a bruised right thumb, the result of being hit with a line drive. ... Rockies RHP Roy Oswalt (left hamstring strain) threw 55 pitches, 41 strikes in 5 2/3 scoreless innings Tuesday for rookie-level Grand Junction. Manager Walt Weiss said Oswalt would pitch for the Rockies this weekend but declined to say whether he will start or relieve.