Marcus's rugby team, the Gotham Knights won the Bingham Cup in June 2010. The Bingham Cup, officially the Mark Kendall Bingham Memorial Tournament, is a biannual international, non-professional, gay rugby union tournament first held in 2002. The most recent tournament was held in Minneapolis, Minnesota. New York's Gotham Knights beat the two-time defending champion, the Sydney Convicts, 18-15 in the Cup final.

Marcus is the new director of annual giving. He was previously the alumni relations manager.