Nationals Park. (Photo by Rob Carr/Getty Images)

Tuesday’s game between the Nationals and Orioles was postponed due to rain. The game will be made up Aug. 4, an off-day for both teams. The announcement was made after a two-and-a-half-hour rain delay.

Without playing a game, the Nationals moved into a first place tie in the National League with the Braves, who lost to the Mets, 8-3.

Doug Fister, who was originally slated to start on Tuesday, will start on Wednesday in Baltimore, Nationals Manager Matt Williams said. Tanner Roark was originally scheduled to start Wednesday but will be skipped and moved to the last game before the all-star break. As a result, the rest of the Nationals rotation can start on regular rest.

Gio Gonzalez will start on Thursday in Baltimore. Jordan Zimmermann, Stephen Strasburg and Roark will face the Phillies, in that order, over the weekend. Roark will be available out of the bullpen, but in a limited capacity, before his Sunday start. Roark pitched in long relief last season so he has experience pitching out of the bullpen. This schedule also allows Strasburg to start the first game back from the all-star break on only one extra day’s rest.

The Orioles will slide their rotation back a day, so right-hander Bud Norris is slated to start Wednesday and left-hander Wei-Yin Chen on Thursday.

Aug. 4 was originally an off day for the Nationals between a four-game series against the Phillies and a three-game series against the Mets. It will now be an eight-game home stand in the first week of August. Williams said the Nationals did not consider a split doubleheader with one game Wednesday in Washington and the second in Baltimore.

Williams also said the team had yet to make a decision which Nationals player will serve as the designated hitter on Wednesday in Baltimore. “We’ll spend the short bus ride talking about it,” he said. Jayson Werth, Adam LaRoche and Ryan Zimmerman are options.