They still trail the first-place Dodgers by nine games in the National League West and know that they have to keep their collective feet on the gas if they want to play meaningful games late in the season.
"Obviously it's nice to get a little momentum but we've got to continue to play well," first baseman Paul Goldschmidt said. "We've had a few stretches where we've played well like we have these last two days, but I think on the whole we haven't been able to do that for an extended amount of time."
One person who has stood the test of time thus far is Miley.
A surprise addition to the bullpen at the end of Spring Training, Miley made three relief appearances before he took the place of injured Daniel Hudson in the rotation. He pitched so well that when Hudson came back the team decided to keep him in the rotation.
"He's been a rock for us," Arizona manager Kirk Gibson said. "He trusts the game plan, trusts his catcher, makes it easy on himself. He executes a great game plan, he controls the running game, he's good at the plate, he's just a good all-around player. Really developing this year."
"We didn't have much offensively tonight, but I think you've got to give some credit to Wade Miley," Rockies manager Jim Tracy said. "He gave us a little lesson as far as attacking hitters. He went right after us. He got himself a nice little cushion early on. But when you look at his ball-strike ratio it's indicative of what I've been talking about. He threw  pitches and only  balls, attacking us with the fastball, getting ahead of hitters. It will put you back on your heels."
Miley allowed one run on three hits while striking out five and not allowing a walk to lower his ERA to 2.53.
"I was just able to throw strikes throughout most of the night," Miley said. "Getting ahead with the fastball, and they were swinging early. They were hitting some balls hard, but the guys in the outfield were running them down and making good plays."
Throughout his time in the big leagues, Miley has followed a simple rule: whatever sign his catcher puts down, that's what he throws.
"I just trust Miggy right now," he said of catcher Miguel Montero. "And it's working."
For the second straight night the D-backs offense jumped on a Rockies starter for early runs.
Goldschmidt got Arizona on the board in the first when his two-out double scored Ryan Roberts.
Goldschmidt has been red-hot for the D-backs, and his 3-for-4 night with two doubles and a homer extended his hitting streak to 14 games.
"He's pretty locked in right now," Gibson said. "I hope it continues. He's got a good head on his shoulders. He's worked good. Just much more relaxed today. Everybody had a good day."
A.J. Pollock, who was called up from Triple-A to take the place of Lyle Overbay, smacked a two-out single in the second to put Arizona up 2-0.
Overbay was placed on the paternity list Wednesday after his wife gave birth to the couple's fourth child.
The D-backs added three more runs in the third on Goldschmidt's second RBI double, and John McDonald and Aaron Hill also drove in runs with doubles in the frame to give Arizona a 5-0 lead.
Miley was named NL Rookie of the Month for April and is certainly a candidate for Rookie of the Year. Not that he's thinking that way.
"I just try not to think about that too much," Miley said. "Just stay focused on what we're trying to do as a team and go from there."