Dodgers starter Dan Haren is coming off his best start of the season entering Saturday's duel with the Rockies at Coors Field.
In his last outing, Haren surrendered only one hit in seven scoreless innings against the Indians on Monday.
In his start before that, though, he struggled. Haren went only 4 1/3 innings -- his shortest appearance of the season -- while giving up four runs against the Royals.
But despite his weak outing, the Dodgers still picked up the win.
"I think Danny kind of always gives up a few runs, but he always seems to keep us in the game," manager Don Mattingly said.
The entire Dodgers staff has been dealing of late, which has been a primary cause for the team surging toward first place. No Dodgers starter has walked more than two batters in 38 straight games -- a modern-era record.
"I've been on good staffs, but it's tough to hold my weight here," Haren said. "Every time out the guys are dealing. I've just tried to maintain the momentum and haven't done that until [the last start]."
Haren's opponent on Saturday, left-hander Jorge De La Rosa, has been consistent -- just not in the way the Rockies would like.
Since the start of June, De La Rosa has given up three or more runs in five of his six starts. In the span of a month, De La Rosa's ERA has ballooned from 3.68 on June 3 to 4.86 after his six-inning, four-run outing against the Brewers on Sunday.
In his previous outing against the Dodgers, he gave up eight runs (seven earned). But even if he had pitched a gem, the Rockies probably still would have fallen -- Dodgers ace Clayton Kershaw no-hit Colorado in that matchup.
Rockies: Groin strain sidelines Tulo
Shortstop Troy Tulowitzki is day to day with a strained groin suffered after a sixth-inning single against the Dodgers on Thursday.
Tulowitzki remained in the game after the injury, but manager Walt Weiss said if Tulowitzki had gotten on base again, he probably would have been replaced by a pinch-runner.
"Felt it might be good to get him out of the game last night, but he stuck it out for a couple more innings," Weiss said before the Rockies' 9-0 loss to the Dodgers on Friday.
Weiss said that although they were facing Kershaw, there was no hesitation to give the star shortstop some rest.
"Not with the way he was feeling today," Weiss said. "I didn't think he'd be in there today after last night, so there really wasn't much of a decision to be made."
Dodgers: LA reaches 50-win mark
After the win Friday, the Dodgers moved 1 1/2 games ahead of the Giants for their biggest first-place lead of the season.
The Dodgers have been on a roll lately, winning of eight of their past 11 games. Their rotation has been the key force behind their hot streak, but the offense has gotten into gear as well. On Friday, every position player in the starting lineup notched at least a hit.
"It feels good where we're at," Mattingly said. "But we were there a couple days ago and lost two in a row. First place doesn't matter, it's that we're playing good baseball."
With eight scoreless innings Friday, Kershaw extended his scoreless-innings streak to 36, the third-longest in Los Angeles Dodgers history.
Adam Lichtenstein is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.