After completing a degree in physical education at North Central College, Joslyn began coaching as an assistant baseball coach at Aurora in 1986 before becoming a basketball, football, and baseball assistant coach at a series of Illinois high schools. in 1996, he returned to the college ranks as an assistant baseball coach at his alma mater, North Central. He moved to Northern Illinois in 2003 to work for Ed Mathey. After a promotion to Associate Head Coach in 2008, Joslyn accepted the head coaching position at Chicago State University.[2][5][7] He held that position until the conclusion of the 2020 season when the school's baseball program was discontinued.[8]
Head coaching record
The following table shows Joslyn's record as a college head coach.
National champion
Postseason invitational champion
Conference regular season champion
Conference regular season and conference tournament champion
Division regular season champion
Division regular season and conference tournament champion
Conference tournament champion
^All eight of the Great West's teams qualified for the tournament in 2013.