Gio Gonzalez came away with the win for Washington in a 4-3 game against Houston.
He pitched 4.2 innings, allowing just three hits, one earned run, and striking out four batters.
Much of Washington's offense in this one came from the bat of Steven Souza, who hit solo shots in both the second and fourth innings to give the Nats a 2-0 lead. He also drove in Brock Peterson on a triple in the top of the seventh inning to secure the win.
Souza had an incredible game going 3-3 with a walk.
The other run Washington scored came in the top of the fifth inning off of a Brian Goodwin single that drove in Tyler Moore.
Goodwin finished 2-3 at the plate.
The losing pitcher was Scott Feldman who pitched four innings for the Astros.
Washington's Manny Delcarmen earned the save, giving up just one hit in two innings.
In the other game, Washington suffered a 2-1 loss to the Tigers.
Nats starting pitcher Jordan Zimmerman got off to a shaky start, giving up a single to Rajai Davis, then hitting Ian Kinsler in the first inning.
Davis would later steal third base and score on a Don Kelly ground out.
Zimmerman would eventually settle in to pitch four solid innings without allowing another run, and Washington tied the game up in the bottom of the sixth inning on a passed ball by Bryan Holaday, allowing Jeff Kobernus to score.
Unfortunately, that was the only offense that Washington was able to mustard up in a three hit effort.
Tigers starter Justin Verlander blanked the Nationals in five innings pitched, allowing just one hit and recording four strikeouts.
Nationals reliever Michael Gonzalez would eventually record the loss in the top of the eighth inning when he gave up a double to Danny Worth, allowing former Nats second baseman Steve Lombardozzi to score the go-ahead run.
Phil Coke earned the win for Detroit in just one scoreless inning pitched.