Muncy was 2-for-6 with a double, a triple and two RBI in Saturday's 10-6 win over the Giants.
Muncy came through with a clutch two-run double with the bases loaded in the ninth inning to help pad the lead to 9-5. The 28-year-old has a .260/.389/.568 slash line with 33 home runs in 389 at-bats with one game to go in the regular season.