Roger McKinnon graduated from OPSU in 1972. He began his collegiate career at OU, but transferred to OPSU after two years. His senior year, McKinnon was a District 9 golf medalist and participated in the NAIA National Golf Tournament, finishing in the top 20. He also earned a bachelor's degree in Accounting and Business Administration from OPSU.

In 1999, McKinnon joined the OPSU athletic department as the head coach for the men's and women's golf teams and remains the men's head coach. He also has a close association with the OPSU football and basketball teams and is the senior member on the athletic staff.

During his tenure at OPSU, McKinnon has had two golfers named as All-American scholars and has had one player compete at the regional level.