Colorado finished 1-5 on its recent road trip despite receiving quality starts from its starters in all six games, a stretch in which the starters posted a 2.37 ERA.
Ubaldo Jimenez turned in his best start of the season when he gave up one run over six innings, and the Rockies even got a stellar outing from Clayton Mortensen -- four hits and one earned run in six innings -- who filled in for the injured Esmil Rogers (back).
Jason Hammel, who didn't get a decision in his last start against the D-backs despite surrendering just four hits over seven scoreless innings, said the rotation has benefitted from a positive atmosphere of one-upmanship.
"I think with competitive people, when you see one guy go out and do really well, it really pushes the next guy to go out there and improve," Hammel said. "Right now, I think we're just pushing each other and making a good competition out of it."
Overall, the starters' 3.79 ERA is the sixth-lowest among National League teams.
"I personally feel like anybody we run out there is going to give us a good chance to win," Rockies manager Jim Tracy said.
But while the performances from members of the rotation have been solid of late, catcher Chris Iannetta sees room for improvement.
"We've got to get better," Iannetta said. "There's a lot of things we can still do better. We just need to slowly integrate those things in day by day."