Rencher attended the University of Texas at Austin, being drawn to the high-paced tempo of play that coach Tom Penders employed.

[3] He was traded midway through his rookie season (1995–96) with the Heat to the Phoenix Suns, in exchange for Tony Smith.

His college coaching career began as a graduate assistant at Saint Louis University under the late Rick Majerus during the 2008–09 season.

In his first year at University of San Diego, Rencher assisted the team in earning a 20-win 2017–2018 season, inclusive of a quarterfinals appearance in the CollegeInsider.com (CIT) Post-Season Tournament.

In his second year, Rencher assisted first-time head coach Sam Scholl in improving the team to a 21-win 2018–2019 season, which included a semi-finals finish in the West Coast ConferenceTournament, as well as a National Invitational Tournament (NIT) appearance, the program's first in school history.