Utley hit his major league-leading ninth home run - his sixth in five games. He became the fourth player in Philadelphia franchise history to homer in five straight games. Bobby Abreu was the last to do it on May 8-12, 2005.
The All-Star second baseman became the first major leaguer to homer in five straight games since the New York Yankees' Alex Rodriguez from Sept. 4-9 last year, according to the Elias Sports Bureau.
Garrett Atkins and Yorvit Torrealba homered for the Rockies, who blew an eighth-inning lead for the second straight day.
The Phillies mounted the winning rally off Taylor Buchholz (1-1) with two outs and no one on. Ryan Howard and Pat Burrell singled, and Pedro Feliz walked. Brian Fuentes came on in relief, and Carlos Ruiz doubled down the right-field line to drive in two runs.
Philadelphia added three runs in the top of the ninth off Micah Bowie on doubles by Werth and T.J. Bohn. Rudy Seanez (2-1) got the win in relief.
The Rockies jumped out to the early lead in the second. Brad Hawpe started the inning with a double to left-center, and Clint Barmes followed with a bloop single to left. Torrealba hit a 2-1 pitch into the left-field bleachers to make it 3-0. It was his second home run of the season.
Struggling Troy Tulowitzki had a tough night, making the final out of the second, fourth and sixth innings with runners in scoring position. He went 0-for-5 to lower his average to .165.
The Phillies scored twice in the fourth. Howard, who came into the game hitting .185, singled to right with two outs and Burrell followed with his seventh homer of the season to make it 3-2.
Colorado got the runs back when Garrett Atkins hit his fourth homer of the season, a two-run shot into left field with one out in the fifth.
The Phillies rallied in the sixth. Werth hit a drive to deep center that Taveras couldn't get off the carom, and he beat the relay throw to home. Utley followed with a home run to make it 5-4 and chase starter Mark Redman.
The Rockies loaded the bases on an error and two walks in the third, but Utley's diving stop of Barmes' grounder up the middle started an inning-ending double play.
Notes:
Colorado pitching coach Bob Apodaca left Coors Field prior
to Monday's game for what the Rockies said were family reasons. ...
Werth's inside-the-park home run was the first by a Phillies player
since Jimmy Rollins did it on April 7, 2007, at Florida. ... The
Phillies have hit back-to-back home runs three times this year.
