Harrison, who had hits in each of the month's first eight games, is the second Pirates player to win the award this season, joining Andrew McCutchen, who took home the honors for a standout June.
Eventually settling in as the Bucs' everyday third baseman, Harrison totaled nine RBIs in the month, five of which came on Aug. 22 against the Brewers. He also filled up the highlight reel in a 2-1 victory against the Reds on Friday. Harrison made a trio of diving stops at the hot corner and had three hits in the game, the last of which was a game-tying triple that set himself up to be driven home as the deciding run.
Among other players receiving votes for the monthly award were Miami's Giancarlo Stanton, San Francisco's Buster Posey, Pablo Sandoval and Hunter Pence, Atlanta's Justin Upton, St. Louis' Jon Jay and Adrian Gonzalez of Los Angeles.
Stephen Pianovich is an associate reporter for MLB.com.