 His personal best was 8237 points, achieved at the World Championships in 1993.Muzzio attended George Mason University in Fairfax, VA and was the first decathlete in NCAA Division I history to win back-to-back NCAA decathlon titles in 1984 & 85.Currently, he is the pole vaulting coach for the Track and Field team at Robinson Secondary School in Fairfax, where he attended high school.