In the 2002 State Championship, sophomore Mims and the Brunswick team faced Deering High School and Nik Caner-Medley.
Brunswick finished runner-up in the Eastern Maine Final against Bangor in Mims' junior year.
Mims' senior year, he carried the team to the state championship against the Portland High School Bulldogs.
In his college debut against Texas Southern University, Mims scored a career high 17 points.
The rights to his contract was later dealt to Antalya Büyükşehir Belediyesi where he spent the rest of the 2008-2009 season, 17 games, averaging 13.8 ppg.