Finnegan picked up the save Sunday against Atlanta, allowing one hit and no walks with two strikeouts across 1.1 scoreless innings.
Finnegan (3-6) took the loss Friday, giving up a run on three hits and a walk without recording an out as the Nationals were downed 3-2 by the Phillies.
Finnegan (2-5) took the loss Monday against the Diamondbacks, coughing up five runs on five hits while recording only one out.
Finnegan struck out one in a perfect ninth inning to record his 28th save of the season in Sunday's win over the Reds.
Finnegan was named an All-Star Monday and will join the National League team for Tuesday's All-Star game.
Finnegan struck out two in a perfect ninth inning Wednesday to record his 21st save of the season in a 3-1 win over Arizona.
Finnegan picked up his 20th save of the season Sunday against Miami, allowing one hit and zero walks while striking out one in a scoreless ninth inning.
Finnegan gave up a solo home run and struck out one in the ninth inning Wednesday to record his 19th save of the season in a 7-5 win over the Tigers.
Finnegan (2-3) earned the win in Tuesday's 10-inning victory over the Tigers, striking out three over 1.1 scoreless innings.
Finnegan picked up the save Sunday against Cleveland, allowing one hit and zero walks while striking out zero in a scoreless ninth inning.