Trevor Story and Ian Desmond also homered in the third to help the Rockies end an eight-game home losing streak. It was the longest home losing streak since Colorado lost nine in a row at Mile High Stadium in its inaugural 1993 season.
Asdrubal Cabrera and Kevin Plawecki had two hits apiece for New York, which had its three-game winning streak snapped.
The Rockies suffered three-game sweeps against the Los Angeles Dodgers and Arizona Diamondbacks while losing eight in a row at Coors Field.
The start of the game was delayed more than an hour due to a rainstorm that blew through the area in the early evening.
The teams started scoring right away. New York scored a run in the first and the Rockies responded with two in the bottom of the inning. The Mets tied it in the second but Colorado put together a game-changing inning in the third.
Charlie Blackmon led off with a single off Jason Vargas (2-6) and Arenado, who had three hits, followed with his 14th homer of the season to put the Rockies ahead 4-2. Story hit his team-leading 16th homer and Desmond followed with his 15th.
The Rockies, who finished with 16 hits, added to the lead on a run-scoring double by Noel Cuevas and an RBI single by pitcher German Marquez.
Marquez (5-7) allowed four runs on six hits, and he also had an RBI and scored a run to help his cause.
Carlos Gonzalez hit a solo homer in the fourth to extend the lead to 9-2 before the Mets scored two times in the fifth and seventh innings to get within 10-6. New York scored two runs in the ninth off struggling closer Wade Davis
--Field Level Media
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