Rumfield went 1-for-4 with a two-run home run in a 5-2 win over the Cubs on Tuesday.
Rumfield gave the Rockies their first lead with a two-run shot in the fourth inning. The long ball was his third over a red-hot seven-game span during which Rumfield has batted .357 (10-for-28) with eight extra-base hits and seven RBI. The hot stretch has pushed his season OPS up to .821, third best among qualified MLB rookies.