Matt Garza’s errant throw to first on a bunt was the Cubs’ fourth error of the night and opened the door to two more runs.
Dexter Fowler had a triple, walk and scored a run for Colorado. Huston Street pitched the ninth for his eighth save in eight chances.
Rockies starter Esmil Rogers (3-1) gave up eight hits and four walks, but just three runs in 5 1-3 innings.
Only one of the five runs scored against Garza (0-3) were earned. He gave up three hits and a walk in six innings.
Kosuke Fukudome set a career high with five hits, all singles and Darwin Barney hit a two-run homer in the first inning.
In Phoenix, New father Ian Kennedy threw a three-hitter in the first complete game of his major league career, outpitching Cliff Lee .
The Diamondbacks snapped a four-game skid as they opened a 10-game home stand after being swept in three games by the Mets in New York.
Kennedy (3-1) struck out 10 — including Jimmy Rollins to end the game — and walked none. He had come home early from the team’s trip for the delivery of he and his wife’s’ first child, Nora Rose, at 2:04 a.m. on Sunday.
Chris Young and Gerardo Parra homered off Lee, both on the first pitch of an at-bat. Lee (2-2) gave up four runs on five hits in seven innings, matching his season high with 12 strikeouts, one shy of his career high, and walking one.
In Milwaukee, Jay Bruce hit a two-run homer, Bronson Arroyo pitched effectively into the seventh and Cincinnati used a six-run third inning.
Already ahead 1-0, the Reds sent 11 batters to the plate in the third, holding Chris Narveson (1-1) to his shortest outing in 38 career starts.
Cincinnati had eight hits in the inning one night after managing just four in a shutout loss to St. Louis.
Bruce homered and Brandon Phillips , Jonny Gomes , Ryan Hanigan and even Arroyo (3-2) drove in a run each to give Cincinnati a 7-0 lead.
Phillips added a two-run single in the ninth as Arroyo got all the support he needed to snap his two-game losing skid.
Milwaukee’s Ryan Braun continued his torrid stretch with a two-run homer in the ninth.
In Miami, Omar Infante lined a two-out RBI single that left fielder Jerry Sands misjudged in the ninth inning, capping a two-run rally.
Both runs were unearned. Scott Cousins’ two-out grounder scooted under the glove of shortstop Jamey Carroll for an error to score the tying run.
Chris Coghlan was then intentionally walked to load the bases, and Infante lined a 1-0 pitch to left. Sands started in, braked and leaped, and the ball sailed over his glove.
The Marlins’ ninth comeback win this season received a boost from All-Star shortstop Hanley Ramirez , who was mired in a 2-for-27 slump coming into the game and held out of the starting lineup. He pinch-hit with two outs in the ninth and Florida trailing 4-3, and his single put runners at first and third.
Because of the fielding lapses, Jonathan Broxton (1-1) blew a save for the first time in seven chances.
Brian Sanches (3-0) extended his scoreless streak to start the season to 13 2-3 innings with a perfect ninth.
In Pittsburgh, Brandon Wood’s two-run double in his first game for Pittsburgh was part of a four-run fourth inning.
Paul Maholm (1-3) retired the final 13 batters he faced in seven strong innings as Pittsburgh made up the original series opener that was postponed by rain on Friday.
Wood, picked up on waivers from the Los Angeles Angels on Friday, gave the Pirates their first lead with a two-run double.
Announced paid attendance was 12,457, but only about 2,600 made it through the turnstiles on what wasn’t originally a scheduled game night. Also contributing to the poor showing was rain that caused a 21-minute delay and a Penguins playoff game at the same time.
Joel Hanrahan struck out pinch-hitter Rick Ankiel looking with runners on first and third and two outs in the ninth to finish his sixth save.
John Lannan (2-2) allowed four runs on five hits and two walks with three strikeouts in 5 2-3 innings.
