Gallo went 1-for-4 with a double and an RBI in Wednesday's 6-1 win over the Rockies.
Getting his first start since coming off the IL on Monday, Gallo handled first base and batted eighth, and he drove in the Nationals' first run of the night in the second inning with a one-out double. Juan Yepez has a .194/.250/.258 slash line in August, which could open the door for Gallo to see semi-consistent playing time, but the 30-year-old is a free agent in the offseason and almost certainly won't be in the team's future plans.