Trailing by one in the bottom of the ninth, the Colorado Rockies (44-71) rallied to complete a sweep of the Milwaukee Brewers (52-64) on a Tyler Colvin two-run, walk-off double. The Rockies continue the homestand opening a four-game series against the Miami Marlins (53-65) tonight at 6:40 at Coors Field (TV: Root Sports).

For the third time in the series with the Brewers, the Rockies had a big first inning. But spot starter Guillermo Moscoso faltered in the fifth inning and the Brewers rallied to take the lead before Colvin's heroics erased everything to complete the sweep.

The Rockies scored three times in the first off Mark Rogers (1-1), and Eric Young Jr. made it 4-0 with his fourth homer of the season and second in as many games -- this one an opposite-way shot to left. The Rockies (44-71) had built early leads in the first two games of the series and recorded just their second series sweep of the season, and first since a four-gamer over the Astros May 28-31.

Moscoso -- called up from Triple-A Colorado Springs because lefty Drew Pomeranz has a sore chest muscle -- began the game with four scoreless innings, but all four hits, two walks and one hit batsman to that point had come with two outs.

The Rockies' four-man pitching system was devised in part to prevent pitchers from facing a lineup a third time. Manager Jim Tracy, however, stuck with Moscoso in the fifth, even though he was on his third time through the lineup. Moscoso walked Carlos Gomez, gave up a Rickie Weeks RBI double, an Aramis Ramirez single and a Corey Hart double before being replaced by Carlos Torres (1-2). Jonathan Lucroy and Nyjer Morgan greeted Torres with singles, and Jean Segura's sacrifice fly gave the Brewers a 5-4 lead.

Carlos Gonzalez led off the Rockies' sixth with a single and with two outs, Chris Nelson tallied his second RBI single of the game to tie the score. However, Torres walked Hart to open the seventh, and Morgan singled Hart home off Matt Reynolds with one out.

Tickets are available for tonight’s game at Coors Field vs. the Miami Marlins, and can be purchased by calling (800) 388-ROCK, or click here.