The Colorado Rockies are off to an 8-2 start this season, and while it's rarely a surprise when the offense leads the way, the Rockies did it mostly without much help from their biggest weapon, Nolan Arenado. Arenado homered for the second straight game as Colorado beat the visiting San Francisco Giants 5-2 on Tuesday night. It was the Rockies' fourth straight win and their eighth game in a row of scoring at least five runs.