Leo Dawson is known as one of the greatest defenseman in Boston State College men's lacrosse history. He was a Co-Captain on the 1974 team that compiled an 11-3 mark and captured the United States Intercollegiate Lacrosse Association Colonial League Championship. The Warriors also made an appearance in the ECAC Division III Championship Tournament that year as Dawson earned All-New England and All-Colonial League honors as well as a spot on the New England Division I College All-Star Game roster. These accolades were not new to Dawson, who helped Boston State register a 28-13 record during his three-year career, as he was named to the All-Colonial League team the prior year as a junior. He was an integral part of the 1972 team that finished with an 11-2 record and the USILA Colonial League crown. The Warriors advanced to the quarterfinals in their first appearance in the USILA National Championship Tournament that year, due in large part to Dawson and the defense's tremendous feat of allowing just 4.1 goals per game. Following his 1974 graduation from Boston State, Dawson Leo continued his playing career with the Brine Lacrosse Club of Cambridge, Massachusetts in the United States Club Lacrosse Association from 1975-1982. He and fellow Warrior lacrosse players, Bill Rafuse and John Yeager led the Brine team to the 1976 USCLA National Championship Tournament in Baltimore, Maryland, where they advanced to the title game, before falling to the Mount Washington Lacrosse Club. When he wasn't playing lacrosse he was coaching it as Assistant Coach for Gordie Webb at Boston State College from 1974-1976 and later as the Varsity Head Lacrosse Coach at Merrimack College from 1976-1982. His 1979 Merrimack team earned the New England Lacrosse Coaches Association, Most Improved Team Award. Dawson remained in the game following his coaching career as a referee at the NCAA level for 10 years and is presently the Principal of the Atlantic Benefits Group in West Chester, Pennsylvania.