Career
He was educated at The Gunnery (a prep school), Northeastern University and Hughes Hall, Cambridge. O'Mara represented the United States in sculling events at the World Rowing Championships three times: in 2000 (as a junior) in Zagreb, Croatia. 2005 in Gifu, Japan; and 2006 in Dorney, England.
He also sculled in two World Cup events in 2007.