South Bend Riley High School, 1977 – 81
Mark Appenzellar swam for South Bend Riley High School from 1977-81. Mark was a two-time champion in the 500-yard freestyle, winning it his sophomore and junior years. Additionally, he was crowned state champion in the 200-yard freestyle his sophomore year. The South Bend Riley team won the 1978 state championship team, as he placed fourth place in the 500-yard freestyle. The team was state runner-up both his sophomore and junior years.