On March 28, 2018, head coach Jason Mims resigned to accept to an administrative position with Major League Soccer club, Real Salt Lake.[2][3] Mims was replaced by veteran coach, Bob Warming on April 2, 2018.[4] In his third season as coach, the Mavericks returned to the NCAA Division I Men's Soccer Tournament. Omaha finished second in the conference standings but the two games with Denver were canceled due to COVID protocols in the Pioneers camp. If Omaha would have won the two unplayed games, they would have been outright conference champions. COVID protocols kept Denver out of the 2020 NCAA Division I Men's Soccer Tournament and the Mavericks were selected as the replacement team.[5]
During the 2020 season, the Summit League men's soccer tournament was not held because of the ongoing COVID-19 pandemic, and the regular season champion would represent the league in the NCAA men's soccer tournament. Omaha finished second in the Summit League standings behind Denver. Omaha's two regular season games with Denver were postponed, and later cancelled due to COVID cases within the Denver program; if Omaha had won those games, they would have been the Summit League regular season champions. On Tuesday, April 20, 2021, Denver announced that they were withdrawing from the NCAA men's soccer tournament "due to COVID-19 protocols," and would be replaced by Omaha. On April 29, 2021, Omaha defeated Denver's intended opponent, 23rd-ranked UNC Greensboro, 3 to 2 for the program's first-ever NCAA men's soccer tournament win.[12][13]