Bob Hines served as the first coach in UNO baseball history, directing the team to an 8–19 record in 1970 – its first season – followed by a 14–25 mark in 1971.
In 1972, Illinois native, Ron Maestri, was hired by then chancellor Homer Hitt as the second head coach to lead the Privateers.
After seven years competing as Division I Independents, the Privateers would join 6 teams in the formation of the American South Conference.
After a few up and down years, the Privateers would once again find success in the 1996 season by earning a trip to the South II Regional in Baton Rouge as a 5 seed.
Before the 2000 campaign, the university would hire former player and two time World Series champion, Randy Bush, as the fourth head coach of the Privateers.
Despite not winning the conference tournament, they would earn a 2 seed in the Baton Rouge Regional due to their success in the regular season.
Despite the tremendous damage sustained to the East Campus of UNO, the Privateers were able to salvage a winning season and a trip to the Sun Belt Tournament.
Building on their success, the Privateers were able to take the Sun Belt Conference tournament championship in 2007, a feat that had eluded them since 1979, and their first NCAA regional berth since 2000.
The Privateers were able continue their success by making it to the SBC Championship Game before losing to the Hilltoppers of Western Kentucky.
Despite not winning an automatic bid, their regular season efforts were enough to earn them a spot as a 3 seed in the Baton Rouge Regional.
The Privateers compiled a 13–39 through the 2010 season in their final campaign in the Sun Belt before they officially left the conference on June 30, 2010.
As such, the Privateer baseball team played a largely Division II schedule with the exception of Nicholls State, McNeese, and Southern.
In his second year as head coach, the team started 5–0, and ended up defeating in-state rival LSU twice in a season for the first time since 2008.