On March 9, 2019, Loudoun United played their first USL Championship game, losing 0–2 against Nashville SC.
[1] The next week, Loudoun had their first goal in club history, when Griffin Yow scored in the 30th minute against Memphis 901 FC in a game that ended in a 1–1 draw.
Loudoun United won their first game in history when they beat New York Red Bulls II 3–1 on April 20, 2019.
In their final regular season game, they played against the New York Red Bulls II at home, and won 7–3 in front of a crowd of 3,014 people.
Due to their ownership by a more advanced level professional club, LUFC is one of 13 teams expressly forbidden from entering the Cup competition.