DENVER — Josh Collmenter's latest start lasted all of seven innings. Really, though, it felt more like a few days.
Collmenter had to wait through rainouts on back-to-back nights to finally take his turn on the mound.
He didn't have his best stuff, either. No matter, Aaron Hill aided him at the plate and Ender Inciarte in the field.
Hill tied a career high with four RBIs, including a three-run homer, and Inciarte made two catches against the outfield wall to help the Diamondbacks beat the reeling Colorado Rockies 13-7 in a doubleheader opener Wednesday.
Rain postponed the first two games of the series, and another storm was expected later. When not getting washed out, the Rockies have been outscored 60-24 in losing six straight.
Collmenter (3-3) gave up five runs and 10 hits, including three homers.
"I moved my fastball around pretty good. Off-speed pitches were all pretty bad," Collmenter said. "That is what I gave up a lot of the damage on. You have to be better at those."
The righty tried to stay loose through the two-day break. It was far from easy.
"I did the same routine both days. I threw a little bit yesterday just to make sure," Collmenter said. "I played catch just a little bit to try to keep it as close to normal as possible."
Tyler Matzek (2-1) allowed four runs in two innings and matched a career high with six walks in his first start since leaving an April 27 outing at Arizona with a hamstring cramp.
The lefty said he struggled with the command of his fastball. Of his 58 pitches, only 20 were for strikes.
"It's extremely frustrating. It's disappointing that I let my team down," Matzek said. "We had to go to the bullpen early, which is terrible, especially on a day we have a doubleheader. Just disappointed. The fastball feel just wasn't there."
Hill had four RBIs in a game for the eighth time — the first since Aug. 11, 2013, against the New York Mets. The Diamondbacks tied a season high with 18 hits.
"No leads are ever safe. So it's fun to see them continue to have good at-bats and put runs on the board," Collmenter said.
Mark Trumbo hit a two-run homer and an RBI double, and Yasmany Tomas finished with three RBI singles. Inciarte added four hits, and his biggest contribution was with his glove.
Inciarte caught a deep drive by Nick Hundley against the left-field wall in the fifth. Then, moving over to right as part of a switch, Inciarte made another grab against the wall in the seventh to rob Charlie Blackmon of extra bases.
Justin Morneau and Hundley had solo homers for Colorado. Pinch-hitter Drew Stubbs connected for a two-run homer in the eighth, which chased Collmenter.
Diamondbacks: Manager Chip Hale isn't sure when Patrick Corbin (elbow) will pitch again after the left-hander threw three innings Tuesday in an extended spring training game. "I think they might be giving him six days," Hale said. ... Hale had no update on 3B Jake Lamb (left foot stress reaction), who recently was cleared to walk on a treadmill.
Rockies: Closer Adam Ottavino (elbow) was scheduled to meet with Dr. James Andrews on Wednesday. Ottavino is concerned he will need season-ending Tommy John surgery. "Could be a long road ahead," manager Walt Weiss said. "But he's ready for that." ... RHP LaTroy Hawkins (biceps tendinitis) was slated to resume throwing Wednesday. "We're not rushing this thing," Hawkins said.
Diamondbacks: Lefty Robbie Ray will be added to the roster before the second game. He's scheduled to be sent back to Triple-A Reno following his start.
Rockies: Jordan Lyles (2-2, 4.25 ERA) will start the second game. He took the loss when the Rockies played in Arizona last Wednesday. The right-hander is 1-3 with a 7.07 ERA in seven starts against Arizona.