Bob Lilley returns for his second season as Riverhounds manager.
All nine games were played in Pittsburgh, with eight taking place at Highmark Stadium.
Pittsburgh's home opener at Highmark Stadium will be played on April 13, as the six-year anniversary of the stadium's opening will be marked with a game against expansion club Hartford Athletic.
The Riverhounds will also take part in the home opening matches for two other clubs, facing Tampa Bay Rowdies on March 16 and Swope Park Rangers on March 23.
[4] As a member of the USL Championship, the Riverhounds entered the tournament in the second round, to be played May 14, 2019.