PHOENIX (AP) -- The Diamondbacks had 20 base runners Friday night. That wasn't enough against the Rockies.
Corey Dickerson's unlikely double on a pitch that bounced in front of the plate started a five-run seventh inning as the Rockies pulled away to beat the Diamondbacks 7-5.
The D-backs had 12 hits and drew eight walks but fell behind 7-2 before Miguel Montero's two-out home run in the ninth made it a two-run game.
"We had many opportunities," manager Kirk Gibson said. "Two for 12, and the first hit with runners in scoring position we didn't even score a run on."
With the score tied in the seventh, Dickerson took a pitch from reliever Will Harris that skipped about 3 feet in front of the plate and laced it into right field for a double.
"We're playing cricket out there," Dickerson said he told his teammates as he came back to the dugout.
Wilin Rosario drove in four runs with a single and double and the Rockies got 16 hits, none more incredible than the one Dickerson caught off the dirt.
"I've only seen two people do that," Rosario said. "Ichiro Suzuki and Vlad (Guerrero). Now C.D. is three."
After Dickerson's unlikely hit, the Rockies broke the game open, helped by Charlie Blackmon's two-run triple.
Harris (3-1) allowed four runs while getting just one out and took the loss.
After Montero's three-run homer off Manny Corpas, Rex Brothers came on to get the final out for his 17th save in 19 tries.
"They walked us eight times," Gibson said, "and with all the hits we had, we should have scored more runs."
Montero reached base five times with the home run, two singles and two walks.
"I just tried to choke up a little bit and go out there and try to play pepper," said Montero, who has had an injury-plagued season. "That adjustment worked tonight."
With the loss, the Diamondbacks dropped to .500 (73-73). They have not been under .500 all season.
Josh Outman (3-0) threw 1 1/3 scoreless innings to get the victory for the Rockies, and D.J. LeMahieu had two singles and an RBI, extending his career-best hitting streak to 13 games.
After Dickerson's strange double to right field, LeMahieu singled to put Colorado ahead. Troy Tulowitzki also singled, and Rosario followed with a two-run double to make it 5-2. Blackmon then plated two more with a triple off reliever Chaz Roe.
Aaron Hill and Paul Goldschmidt led off the ninth with singles, and two outs later, Montero homered.
Rosario gave the Rockies the early lead with a two-run single in the first off Brandon McCarthy.
The D-backs answered in the third, as Adam Eaton's single and walks to Aaron Hill and Paul Goldschmidt loaded the bases with one out against Rockies starter Tyler Chatwood, and Eric Chavez's sacrifice fly made it 2-1.
Chatwood's control problems worsened in the fifth with three walks and a wild pitch. He got the first two batters out but walked Chavez, and after Martin Prado singled and Montero walked to load the bases, Chavez scored on a wild pitch to tie it at 2.
Gerardo Parra grounded into two double plays. He also threw out Blackmon when he rounded second a bit too far in the sixth, giving him a major-league-leading 16 outfield assists this year.
McCarthy singled in the fourth inning for his first career hit. It was his 40th at-bat and he kept his sense of humor about it afterward.
"The bad thing was I was actually leading the MLB in a category: most at-bats without a hit," he said. "Now I am not. That was at least something I had in my name, and now I don't even have that anymore. "
NOTES: Chatwood made his 13th consecutive start after opening the season with seven relief appearances. ... For the first time since the scorching Arizona summer set in, the roof was open at Chase Field.
