Arenado went 2-for-3 with a grand slam, two runs and a walk in the 11-1 victory over the Cardinals on Wednesday.
The homer moves him back into first place with 39 bombs in the National League, one ahead of Cubs third baseman Kris Bryant. Arenado also leads the NL with 128 RBI and nobody is even within 20 RBI of him. He is also hitting .294 with 111 runs and two stolen bases.