Wilin Rosario drove in Carlos Gonzalez with a one-out single in the 10th inning to lift Colorado past the Arizona Diamondbacks 5-4 on Tuesday night after the Rockies squandered a late four-run lead.
Gonzalez hit a double and reliever Matt Reynolds (0-2) intentionally walked Troy Tulowitzki to get to Rosario, who came through with a liner to right on the first pitch.
Rosario lifted his hands in the air after touching first base and was soon mobbed by teammates.
Tulowitzki hit a solo homer and had a double to raise his average to .406 at Coors Field this season.
The Rockies brought closer Rafael Betancourt to start the 10th, but he was in some discomfort after throwing a second straight pitch into the dirt. After a few warm-up tosses, Betancourt left with a tight groin and Wilton Lopez was brought in.
Lopez (1-1) threw a perfect inning to earn the win.