"I felt in the beginning of the season we'd have as good a chance as anybody to be in the thick of it. That's how I still look at it," Mattingly said. "The good start we got bought us a week of struggling. We're just grinding out games.
"We're not worrying about the next series or June or July. I'm a believer in what the guys can do as a group if they play their best baseball."
Los Angeles will take its NL best 13-3 home record into Saturday's contest against the Rockies at Chavez Ravine.
Right-hander Aaron Harang will be on the hill for the Dodgers, after getting a no-decision on Sunday against the Cubs. In that game, Harang lasted six innings, giving up two runs on seven hits for his third quality start of the season.
Meanwhile, Juan Nicasio will get the start for the Rockies, looking to rebound after his first loss of the season.
The right-hander surrendered six runs on eight hits in five innings of work against the Braves, falling to 2-1 with a 5.35 ERA.
"That's what happens when you don't have command of your fastball," Nicasio said after the start. "I missed the command of my fastball and I hung my breaking ball."
Rockies: Outman reinstated from DL
The Rockies reinstated left-hander Josh Outman from the 15-day disabled list on Friday and optioned left-hander Drew Pomeranz to Triple-A Colorado Springs.
Rockies manager Jim Tracy said Pomeranz (0-2, 4.70 ERA in five starts) handled the news well, and if all goes as anticipated, he could be back in the Majors quickly. Pomeranz will start for Colorado Springs on Sunday at Memphis.
"He gets it," Tracy said. "He understands. He knows that there's something that he's looking for that hasn't quite arrived yet. After explaining to him about creating a different environment -- where you have the opportunity to step back, take a couple of deep breaths and work on the stuff, not worry about the result -- he's all in."
Dodgers: Hairston placed on DL
The Dodgers placed infielder Jerry Hairston on the 15-day disabled list on Friday with a strained left hamstring and recalled infielder Justin Sellers from Triple-A Albuquerque.
Hairston was injured on Sunday against Chicago while legging out an infield hit. He's batting .315 with one home run and four RBIs.
"It would be a foolish thing to go out there and blow it out and miss two months," Hairston said. "I blew out the right one and was out three or four weeks. This won't take that long."
Dodgers outfielder Juan Rivera has a ruptured left hamstring tendon and could be out as long as two months, trainer Sue Falsone said on Friday. Falsone said it is an unusual baseball injury, with a medical debate on whether surgery is appropriate.
Rockies outfielder Carlos Gonzalez is batting .365 with three doubles, seven home runs and 21 RBIs in his last 16 games.
Nicasio will face the Dodgers for the fourth time in his career. He's 1-1 with a 5.94 ERA.