Toppert's father, Bob, mother, Linda, and brother, Chad, all played basketball for the University of New Mexico in Albuquerque.
Toppert played the 2007–08 season for the Great Falls Explorers of the CBA under former NBA All-Star Scott Wedman.
Additionally, he coached at numerous camps and clinics across the country, including the NBA Pre Draft Combine in 2013 and 2014.
[3] On November 2, 2017, Toppert was named head coach of the Northern Arizona Suns, shortly before the start of their first season in the NBA G League.
Northern Arizona also made 14.9 three-pointers per game under Toppert, which led the league and would rank 1st in NBA History.
[6] After leading the G-League in NBA call-ups in his first season with Northern Arizona, he was promoted to an assistant coaching position with the Phoenix Suns.
[9] The Tigers finished 1st in Opponent FG% on defense, and Toppert supervised the development of James Wiseman and Precious Achiuwa.
[10] Toppert supervised and tracked their performance using LUCEO's Sports PD App, which he helped develop in his time with the Suns.