PHOENIX (AP) — Used to be, the Los Angeles Dodgers could count on beating Arizona when things got tough.
Cody Ross hit his first home run of the year, Eric Chavez went deep for the second consecutive day and the Diamondbacks beat the Dodgers 5-3 on Sunday for Arizona's first series win at home all season.
After winning eight of its first nine against the Diamondbacks this year, Los Angeles has lost the last two — allowing 18 runs Saturday night. The Dodgers have dropped six of eight series overall.
"Obviously, you don't want to keep losing series. If you lose series you are not going to go anywhere," Los Angeles manager Don Mattingly said. "I am really worried about day to day. Till we can grind out wins, we are in trouble."
Ross, batting .163 entering the game after coming back from major hip surgery, also doubled for Arizona.
"I felt something in BP the other day where I was, 'All right, I can start driving the ball,'" he said.
Chris Owings singled three times and stole two bases for the Diamondbacks. The rookie is 9 for 11 against Haren.
Hanley Ramirez and Adrian Gonzalez homered for the Dodgers, who have lost three of four.
"I don't really have a reason for it," Gonzalez said of Sunday's loss. "A game we should have won but didn't. We could have played better in a lot of ways."
Josh Collmenter (2-2) went 5 1-3 innings to get the win. Addison Reed threw a scoreless ninth for his 12th save.
Collmenter was lifted after 84 pitches, allowing two runs and four hits.
"If you can beat division rivals at home, that's big," Collmenter said. "Especially the way we've been able to play halfway decent on the road, if we can match that at home I think we can get our record where we want it to be."
Haren gave up five runs, a season-high four earned, and 10 hits in six innings.
"The last three games have been a struggle for me," he said. "Prior to that I was fine. I have to look and see what I was doing earlier in the year."
Owings led off the fifth with a single. With two outs and a 3-2 count, Chavez — who entered in the fourth after Martin Prado left with blurred vision in his left eye — hit an opposite-field homer to left.
That gave Chavez home runs in consecutive at-bats. He also had a pinch-hit shot Saturday.
After first baseman Paul Goldschmidt dropped a relay throw for what would have been an inning-ending double play, the Dodgers loaded the bases with two outs against Brad Ziegler in the eighth. But second baseman Cliff Pennington caught Matt Kemp's liner to end the inning.
Ramirez's two-out homer in the first gave the Dodgers a 1-0 lead.
Arizona tied it with an unearned run in the second. Ross doubled and scored when Ramirez threw wildly to first while trying to turn what would have been an inning-ending double play.
In the third, Ramirez walked and Gonzalez homered to give the Dodgers a 3-1 lead.
The Diamondbacks cut it to 3-2 when Gerardo Parra led off the bottom half with a single, went to second on a wild pitch and scored on Owings' single.
Ross' first home run of the season tied it at 3 in the fourth.
Even with the victory, the Diamondbacks are 6-16 at Chase Field this season.
NOTES: Randy Johnson threw out the ceremonial first pitch to commemorate his perfect game 10 years ago. ... Dodgers OF Yasiel Puig went 0 for 3 and was hit by a pitch, ending his 16-game hitting streak. ... Diamondbacks 2B Aaron Hill sat out his second straight game with a sore right shoulder. ... Both teams have Monday off. The Dodgers open a series Tuesday night against the Mets in New York, with Josh Beckett (1-1, 2.38 ERA) pitching for Los Angeles. Rafael Montero (0-1) makes his second major league start for the Mets.