Belisle allowed four runs with 13 strikeouts over 14.2 innings during July.
The 12-year vet has been extremely efficient this year, owning a career best in ERA (1.98) and second-best WHIP (1.10). Even with his stellar play in middle relief, Belisle has seen no save chances this season, and if there was ever any path to that role, it just closed down with the Nationals' acquisition of former Pirates closer Mark Melancon.