PHILADELPHIA (AP) -- Nolan Arenado, Michael McKenry and Ben Paulsen each homered Saturday, leading the Colorado Rockies to a 5-2 victory over the slumping Philadelphia Phillies.

Philadelphia Phillies right fielder Jeff Francoeur cannot catch an RBI-single by Colorado Rockies' Rafael Ynoa during the seventh inning (AP Photo/Matt Slocum)

Eddie Butler (3-5) tied his career high by going six innings, allowing one run and four hits. He struck out three and walked one in an emergency start, helping the Rockies win for the sixth time in seven games.

Cesar Hernandez homered and Ryan Howard had an RBI double for Philadelphia, which lost its sixth straight and fell a season-worst 13 games under .500.

Jorge De La Rosa was scheduled to start for the Rockies, but the left-hander was scratched Saturday morning because of a cut on his left middle finger that cost him his second straight start.

Butler, making his 13th career start, had been 0-4 with a 6.00 ERA in his last five starts.

John Axford pitched a scoreless ninth for his ninth save. Cody Asche and Jeff Francoeur led off the inning with singles, but Axford retired the next three batters.

Aaron Harang (4-5) gave up two runs on four hits in six innings. The right-hander entered with the lowest home ERA (0.61) in the majors, and the two runs he allowed were as many as he yielded in his previous four starts combined at Citizens Bank Park this season.

The 37-year-old still pitched well enough to win, but the Philadelphia's tepid offense couldn't do much off of Butler.

The Phillies have scored 11 runs during their losing streak.

After Howard's hit gave Philadelphia a 1-0 lead in the first, red-hot Arenado and McKenry hit solo shots in the second to put the Rockies up a run.

Arenado finished 2 for 4 with a pair of RBIs and is batting .458 with four homers and 12 RBIs in his last six games.

Paulsen led off the seventh against right-hander Luis Garcia with a 421-foot drive off the base of the second deck in right field. Paulsen also homered off Garcia in the Rockies' 4-1 win on Friday night, a game in which Chad Bettis retired the first 18 Phillies and gave up a no-hit bid with one out in the eighth.

Pinch-hitter Rafael Ynoa put the Rockies up 4-1 with an RBI single later in the seventh.

Freddy Galvis made a highlight-reel defensive play in the inning when he ranged to his left to snare Charlie Blackmon's grounder up the middle before making a behind-the-back flip to Chase Utley for the force of Ynoa at second base.

Francoeur reached second base in the eighth inning on a ground-rule double. A fan reached over the railing and tried to catch the ball while it was still in play, prohibiting left fielder Brandon Barnes from an opportunity to catch it. Umpires confirmed the double after reviewing the play to see if it was a home run.

Hernandez hit a pinch-hit homer leading off the eighth against Rafael Betancourt. Betancourt followed by walking Ben Revere and then was lifted with flu-like symptoms. Manager Walt Weiss and the Rockies trainer came to the mound after the walk and Betancourt departed following a brief conversation.

TRAINER'S ROOM

Rockies: De La Rosa (1-2, 6.51) is now scheduled to start Tuesday's home game against the Dodgers.

UP NEXT

Rockies: RHP Jordan Lyles (2-5, 5.10) looks to get through a start healthy after leaving two of his last three due to injury. He bruised his pitching hand on May 13 and sprained his left big toe in his last outing. In four road starts this year, Lyles is 1-2 with a 6.00 ERA.

Phillies: RHP Jerome Williams (3-4, 5.33) tries to close May on a good note after struggling to a 1-3 mark with a 6.53 ERA in six starts this month entering Sunday's series finale against the Rockies. Williams was the loser during Philadelphia's 7-3 defeat at Colorado May 21 when he allowed five runs on eight hits in five innings.

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