Career
Joplin played guard at the University of Toledo from 1975-1979. He was named to the second-team All-MAC for the 1977-1978 and 1978-1979 seasons. Joplin made a buzzer-beating shot in a 74–72 victory over Iowa in the first round of the 1979 National Collegiate Athletic Association Men"s Division I Basketball Tournament.
During his career, Joplin had an 82–27 record (752).
Joplin served as the head men"s basketball coach for the University of Toledo for 12 seasons. He is the second winningest coach in school history.
Prior to his time at the University of Toledo Joplin was also the coach for Toledo Start High School. His first team was 0-21 in the 1981/82 school year.
Joplin currently is coaching high school basketball at Springfield High School, home of the Blue Devils.
He is also the assistant principal at Springfield.