Following Little League, Babe Ruth, and American Legion participation, Jon Kreissig played for Frederick High School as a starter on both the baseball and basketball teams of 1958–1960. He was a shortstop at the University of Maryland, leading the ACC in double plays, ranking him fourth in the country. In 1965, Kreissig played on Maryland’s first-ever ACC championship team and was named to the ACC All-Academic Team in 1964 and 1965. After graduation, he participated in the Orioles’ North Florida Gulf League. Kreissig spent more than 20 years at Montgomery College, coaching and teaching physical education. He was an athlete, coach, and educator.