"It's honestly frustrating, the season I've had," said Miller, who has a 6.85 ERA. "I felt like, obviously early on [this year], I made some bad pitches and I was giving up some homers and stuff like that. Tonight, it was one of those things where I got beat on some good pitches. I mean, you just tip your cap to them, I guess, and move on to the next one. It's one I want to put behind me, for sure."
The hits that proved to be Miller's undoing came from the seventh and eighth hitters in the Giants lineup -- Grant Green and Trevor Brown. Both came with two outs in the inning.
"A couple of times he would get the second out without a guy scoring and then the third out was elusive," D-backs manager Chip Hale said. "I think his arm is sound. He's just got to limit the damage. Obviously if you're not winning the games, it's not great. That's what we're here for; we're here to win games and he's here to win games. He's not happy with it. Just have to do better. He knows that. He will."
Miller wound up allowing five runs on eight hits over six innings.
"I threw a cutter away to Grant Green that was a decent pitch, a pretty good pitch, actually," Miller said of Green's two-run single in the fourth. "That was away, and he hit it back up the middle."
As for Brown's two-run double in the sixth, Hale said with the pitcher on deck, the game plan was not to give Brown a good pitch to hit.
Miller thought he accomplished that, but still Brown was able to double down the right-field line.
"In my eyes, it was a perfect pitch," Miller said. "It might have been a little on the plate, but not a bad pitch by any means. And he got a hit."
Steve Gilbert has covered the D-backs for MLB.com since 2001. Follow him on Twitter @SteveGilbertMLB. This story was not subject to the approval of Major League Baseball or its clubs.