Edinboro University Athletics

Muggleton was a member of Edinboro's men's cross country teams that dominated the NAIA national championships in 1975 and 1976. He was a three-time All-American once in cross country and twice in the 1,500-meter outdoor. Mark was the PSAC champion in the 880 yard and the mile run in 1976 and the mile in 1977, where he set the school record. He is a member of the Edinboro All-Time Team in Men's Track and Field. Mark later became team captain at the University of Arkansas, earning NCAA I All-American in men's cross country in 1977 and in men's indoor track and field in the two-mile run in 1979, where he finished third in 8:41. Post-collegiately, Mark qualified for the 1980 U.S. Olympic Trials for Track and Field in the 1500 meter run with his time of 3:40. He also was a member of the U.S. Men's Cross Country team that finished second to Ethiopia at the 1981 world championships.