The nine-game home winning streak is the longest by the Dodgers since setting a Los Angeles franchise record with 13 consecutive wins at Dodger Stadium.
It was 435 days ago that McCarthy last pitched in a major league game, on April 25, 2015 in San Diego, and six days after throwing 72 pitches in five innings in his final rehab start for Class-A Rancho Cucamonga.
McCarthy also threw 72 pitches in his five innings on Sunday against Colorado, and he was very effective. McCarthy struck out eight and walked one, allowing only two singles. He picked up where Bud Norris and Scott Kazmir left off, combining with the other two Dodgers starters during this series to pitch 17 scoreless innings, allowing only seven hits and two walks, with 26 strikeouts.
McCarthy left with a 3-0 lead thanks to a second-inning rally, to which he contributed. Trayce Thompson started the scoring with a solo home run, then Rockies starter Jon Gray lost his control, hitting Howie Kendrick then walking three straight batters, the final one McCarthy in his first plate appearance of the season.
McCarthy also had a bases-loaded walk in 2015 with the Dodgers, also in his first plate appearance of the season, on April 8, 2015 against Andrew Cashner.
Daniel Descalso homered off Casey Fien in the seventh inning to give the Rockies their run, but Yasmani Grandal answered with a home run to left center field in the bottom of the inning. It was Grandal's third home run in his last eight games.
Adam Liberatore struck out one in his scoreless sixth inning, and Joe Blanton struck out all three batters he faced in the eighth. Kenley Jansen stuck out three in the ninth in earning his 24th save of the year, giving the Dodgers 41 strikeouts in 27 innings against the Rockies in the series.
In six home games against the Rockies this season, Dodgers pitchers have 76 strikeouts, at least 10 in each game, and a 35.8-percent strikeout rate.
Home runs: Trayce Thompson (13), Yasmani Grandal (8); Daniel Descalso (2)
WP - Brandon McCarthy (1-0): 5 IP, 2 hits, 1 walk, 8 strikeouts
LP - Jon Gray (5-4): 6 IP, 6 hits, 3 runs, 3 walks, 4 strikeouts
Sv - Kenley Jansen (25): 1 IP, 1 hit, 3 strikeouts