PHOENIX (AP) -- Trevor Cahill has struggled throughout the opening month of the season. He gave the Diamondbacks just enough Thursday night to pull out a victory.
Cahill gave up only an unearned run in five wild innings to earn his first win of the season in the D-backs' 3-2 victory over the Rockies.
He had been winless in his first four starts, going 0-3 with a no-decision. Cahill got behind batters and threw 105 pitches, but he escaped trouble late in his outing and benefited from Paul Goldschmidt's two-run homer in the fourth inning.
"I'm searching for command," Cahill said. "I'm getting behind in the count, and it's like I'm losing a feel for the sinker. It's not going where I want the pitch to go."
The victory was the Diamondbacks' seventh by one run -- of their 13 wins this season -- as J.J. Putz got three outs in the ninth for his fourth save.
"When your pitch count is up, it's tough to play behind that pitcher," said manager Kirk Gibson. "Tonight, Cahill gave us just enough to get the bullpen."
Josh Collmenter allowed one run in three innings of relief of Cahill, bridging the gap to Putz in the ninth.
Jorge De La Rosa (2-2) allowed three runs in six innings for Colorado.
"Jorge did his job," Rockies manager Walt Weiss said. "The story tonight was we just didn't get that big hit. Jorge gave us a chance to win again tonight. They had some infield hits. At the same time, he got three double plays. He did his job."
The Diamondbacks scored first in the second inning. Goldschmidt reached base on an error and moved to second when Cody Ross singled. Goldschmidt then scored on a single to left by reserve catcher Wil Nieves. That put runners on first and second with no outs, but Josh Wilson grounded into a double play and Cliff Pennington flied to left.
The Rockies responded in the fourth. With runners on second and third and two outs, Yorvit Torrealba hit a soft grounder to third that Martin Prado could not handle. The error enabled Michael Cuddyer to score, but the tie did not last long, as Goldschmidt's home run in the bottom half put the D-backs back on top.
In the seventh, the Rockies pulled within one run, as Troy Tulowitzki's two-out double to the base of the fence in right-center scored Eric Young Jr., who had opened the inning with a double.
NOTES: Prior to the game, the Rockies placed veteran first baseman Todd Helton on the 15-day DL with left forearm inflammation, retroactive to April 20. To replace the 39-year-old on the roster, the Rockies recalled infielder Ryan Wheeler from Triple-A Colorado Springs. ... Cahill's win was his first since last Sept. 19, a 6-2 victory over the Padres. ... The fourth-inning error by Prado was his first of the season and only the sixth for the Diamondbacks in 22 games. Coming into the game, they led the majors in fielding with a .994 percentage. ... With two hits, Gerardo Parra equaled a career-best 10-game hitting streak.
