Duffin joins the Rocky Mountain College Men’s Basketball Program before the 2025-2026 season.
“Garrett is a great coach with a great track record.” Coach Neville said about Garrett. “He’s everything you want in an assistant coach with his ability to recruit and develop players. He’s a guy who will have great relationships with our players, and I’m excited to get to work with him.”
Duffin spent last season as an assistant at Trine University, where they finished the 2024-2025 season 21-5. He assisted in all aspects of the program, including recruiting, player development, and game planning via film breakdown and scouting.
Before his time at Trine, Duffin worked as the Director of Player Development for Minnesota State University, Mankato, for the 2023-2024 season. During his tenure, the Mavericks won the NCAA Division II National Championship, completing the run with a final record of 35-2 and NSIC regular season and conference tournament championships.
Duffin began his coaching career as a volunteer assistant for three seasons with Waubonsee Community College in Sugar Grove, Illinois, while attending Physical Therapy School. While at Waubonsee, the Chiefs achieved their most successful season in school history, advancing to the NJCAA Division II Elite Eight and setting a program record with 26 wins. He earned his Doctorate in Physical Therapy from Northern Illinois University in May 2023.
In four full seasons assisting at the collegiate level, Duffin has helped develop 11 All-Conference selections and two All-Americans. A native of Princeton, Illinois, Duffin graduated from Princeton High School in 2015.
