Arenado finished 3-for-3 with two home runs, a double, five RBI and a walk in Sunday's loss to the Marlins.
Nobody else in the Rockies lineup managed more than one hit, but the club still had a chance to win because of Arenado, who launched home runs in the fourth and fifth innings before doubling in another run in the seventh. Arenado now leads the National League with 29 home runs and 87 RBI, and he sits second with 80 runs scored this season.