Orange County were also scheduled to compete in the U.S. Open Cup.

Competitive success was inconsistent until a victory over Reno 1868 FC in week 21, when OCSC then went on to gather ten wins in 14 games, including a 6-game win streak.

Orange County travelled to Zion's Bank Stadium for the first round quarterfinal playoff game and lost to the host Monarchs 2–6.

[2] In the U.S. Open Cup, Orange County were eliminated in the first round by Orange County FC losing 3–5 on penalties,[3] failing to win a game in the competition for the fifth time in club history.

2019 marked the second season with Braeden Cloutier as the club's head coach, and the first season with former player Richard Chaplow as assistant coach.