DENVER -- For a sinkerball pitcher like Trevor Cahill, the shorthand way of judging whether or not he has his good stuff is to look at the number of groundball outs he records.
Sunday afternoon against the Rockies at Coors Field, the D-backs right-hander got 19 of his 22 outs either on the ground or via the strikeout.
It added up to a 5-2 win for the D-backs, who managed to salvage one game of the series with the Rockies and finish their six-game road trip, that also included a stop in San Diego, with a 3-3 record.
Arizona returns to Chase Field to open a 10-game homestand Monday against the Pirates.
"We're happy to get out of here with a win," D-backs manager Kirk Gibson said. "We could have won more than the one game but we didn't. The next series starts tomorrow."
Much like Saturday, the game was played under less-than-ideal weather conditions. The temperature at first pitch was 48 degrees, but it had dipped to 42 with a wind-chill factor of 33 degrees by the eighth inning, thanks to 45 mph wind gusts.
It didn't seem to bother Cahill, who chilled the Rockies' bats, allowing one run on four hits in 7 1/3 innings to pick up the win.
"You never really pitch good in the cold, but I just tried to stay warm, they've got the heaters down there [in the dugout] that are pretty nice," Cahill said. "It was just the wind, that's when I got the coldest. When it was snowing or raining the wind wasn't blowing so it didn't feel as bad. I was just trying to keep it down and fortunately enough they were kind of beating it into the ground and that's usually a sign of when I'm on. It was pretty cold so it was probably uncomfortable to hit so that probably helped out a lot."
It was a much different result than Cahill's first outing in a D-backs' uniform, last Tuesday night in San Diego. In that one, he only allowed two hits, but he gave up six walks in six innings.
Cahill told catcher Henry Blanco before the game that he planned to throw as many strikes as he could and not worry about whether or not the Rockies hit him.
"Just kind of being more aggressive," Cahill said. "Not trying to be too fine, first pitch especially, just let the sinker work."
Cahill also took more time during his pregame warm-up session in the bullpen.
"I kind of took my time and made sure I was focusing on each pitch, even in the bullpen, kind of like a game situation, and I think that helped out a lot," Cahill said.
That, and the fact that he had his sinker working.
"Trevor Cahill is a big-time sinker ball guy and he threw some very good ones today," Rockies manager Jim Tracy said. "He threw some sinkers that looked like they were going to be very hittable pitches. He had quite a bit of depth to his sinker. This is a guy that if you're going to succeed against him, you definitely have to force him to raise the ball up, because if in fact you don't , there's going to be an awful lot of groundballs hit against him. That's how good his sinker is."
The D-backs' offense jumped on rookie Drew Pomeranz for some early runs when Justin Upton singled with two outs in the first and Chris Young followed with his fourth homer of the year.
Young came through again in the third with a two-out single to left to score Gerardo Parra and give Arizona a 3-0 advantage.
In the fifth, the D-backs chased Pomeranz when Aaron Hill singled home a pair with a line drive to left that pushed the Arizona lead to 5-0.
"I threw a lot of balls down the middle," Pomeranz said. "I'm really usually pretty good about staying corner to corner. Missed over the middle of the plate to a good fastball hitting team, and that's what happens."
The Rockies made things interesting in the eighth, when they sent eight men to the plate and scored a pair of runs. The fifth D-backs' pitcher of the inning, Bryan Shaw, finally got Ramon Hernandez to ground out to end the frame.
Shaw then pitched a perfect ninth to record his second save of the season.
"Being out here, the balls are obviously a little slick, so controlling it is a little tough sometimes," Shaw said of his signature cut fastball. "A lot of balls kind of slip out of your hand, but I just try to not throw as hard and try to locate rather than try to throw it by people or try to throw harder."
Steve Gilbert is a reporter for MLB.com. Read his blog, Inside the D-backs, and follow him on Twitter @SteveGilbertMLB. This story was not subject to the approval of Major League Baseball or its clubs.