SF@ARI: Reynolds fans the side in the seventh

DENVER -- When he pitched for the Rockies from 2010-12, Matt Reynolds had more success than most at Coors Field, and the D-backs left-hander is plenty familiar with the effects of pitching at mile-high altitude.

"You might not notice it as much when you come in for a series," Reynolds said before the D-backs' opened a three-game set with the Rockies on Monday. "But you definitely do when you're coming back all the time throughout the year."

Reynolds experimented with different workout routines and tried to get more sleep as a way of recovering better while playing in the thinner air that makes extra demands on the body.

While the biggest challenge for players who spend the summer in Denver is physical, visiting teams often struggle with the mental adjustment to the conditions that are known to effect the game.

"When we had our advance meeting, I tried to give my two-cents on what seemed to work for me," Reynolds said. "I think, more than anything, you can't let it get to your head. You see guys that come here and all they can focus on is the altitude and the ball is going to do this, it's going to do that and your head is a powerful thing and it can make it worse."

Miley trying to stay out of his own way

ARI@MIA: Miley gives up two runs over six innings

DENVER -- Last year as a rookie, one of D-backs left-hander Wade Miley's greatest strengths was his lack of thought on the mound.

Maybe a better description would be that Miley kept things simple, but a year of experience under his belt has made that harder to do.

"You've heard Wade say many times, 'I just have to not think out there.' and he's kind of at a point in his career where he's starting to understand a little too much," D-backs manager Kirk Gibson said.

In other words, Miley now has more of an understanding of what he needs to do to be successful and when he's not, he tends to focus on that rather than the next pitch.

"You've got to put it behind you and move forward," Miley said. "That's the thing I've been thinking, 'Why did I give up that double?' Instead of just saying the heck with it and getting the next batter."

Miley pitched better in his last start and feels like he's got a strategy now for how to keep the success going.

"It's not nearly as bad lately," Miley said. "I've been able to grab [the ball] and go a little more. I want to blame it on mechanics, but mechanically I'm fine. You may be off a little bit, but it's not going to effect you that much, it's more of a mental thing."