Rion Rayfield has been a member of the UW-Platteville men's basketball staff since 2017. The 2020-21 season will mark the seventh season of Rayfield’s coaching career and his fourth on the Pioneer bench. Rayfield is responsible for player development, recruiting, opponent scouting, and all other aspects of day-to-day operations for the Pioneers.

At UW-Platteville, Rayfield has helped coach and developed two all-Americans, five first team all-WIAC selections, and two WIAC Players of the Year. In addition, the Pioneers have made the NCAA Tournament the last three seasons and have won at least 20+ games in two of those seasons, along with two regular season WIAC titles (2018 and 2020) and one WIAC Tournament Championship (2019).

Prior to UW-Platteville, Rayfield spent one season at Otero Junior College, as an assistant coach and recruiting coordinator for the Rattlers. Rayfield, also spent time as Director of Basketball Operations at UW-Green Bay where he was part of the coaching staff that helped the Phoenix team capture the 2016 Horizon League Tournament Championship, which led to their first NCAA Division I Tournament appearance in 20 years. Prior to UW-Green Bay, Rayfield also spent one season at NCAA Division II Black Hills State in Spearfish, SD.

Rayfield was named assistant coach of the Pioneer women's golf team in 2022. 

During his playing days, Rayfield attended Florida Southern College where he earned his undergraduate degree. Rayfield finished his career with the Mocs with 1,870 career points and 544 career assists. As of 2017, he holds the program’s records in all-time games played (135) and three-pointers made (364).  During his college career he helped the Mocs to four consecutive NCAA Division II Tournament appearances, was a member of three Sunshine State Conference Championship teams, and earned NCAA Division II Bulletin Honorable Mention All-American honors.