In a statement released by the school, Mainieri said he and athletic director Jeremiah Donati mutually agreed that the program would benefit from a change in leadership. Mainieri accepted full responsibility for the team’s results during his tenure, which spanned 80 games and ended with an even 40–40 overall record.
Donati echoed that sentiment, noting that after discussions with Mainieri earlier in the day, both sides concluded that parting ways was in the best interest of the program. Assistant coach Monte Lee will take over as interim head coach, according to an athletics source.
The decision comes just 23 games into Mainieri’s second season and less than 24 hours after the Gamecocks were run-ruled 22–6 by No. 4 Arkansas Razorbacks in the opening game of a weekend series.
Mainieri’s first season at South Carolina proved historically difficult. The team set program records for total losses (29) and SEC losses (24). The 2026 campaign showed little improvement, as the Gamecocks opened 12–11 overall and 0–4 in SEC play, including five losses to non–Power Conference opponents. Friday’s defeat marked the third time in the last 14 SEC games that South Carolina surrendered 20 or more runs.
Mainieri was hired by former athletic director Ray Tanner, the legendary coach who led the South Carolina Gamecocks to two national championships. Tanner stepped down only months into Mainieri’s tenure and was replaced by Donati, who evaluated the 2025 season and initially chose not to make an immediate coaching change.
Now 68, Mainieri acknowledged that rebuilding the program would require more time than he anticipated—and more than he felt he had at this stage of his life. He emphasized that the university’s leadership fully supported him and the program, but admitted he fell short of the standard he set for himself and the school.
A 2009 national championship coach at LSU Tigers and one of the winningest coaches in Division I history, Mainieri said he will retire for good and focus on family. Reflecting on more than 40 years in coaching across five institutions, he expressed gratitude for the players he mentored and said he hopes their success beyond baseball will define his legacy.
Recent South Carolina baseball coaches by winning percentage include Bobby Richardson (.703), Ray Tanner (.700), June Raines (.667), Chad Holbrook (.654), Mark Kingston (.583), and Paul Mainieri (.500).