From 1985-87, Stuart was player-coach at UC Santa Barbara, where his 1986 team was ranked 5th in the nation and he was named an All-American.
Player Krohn played professionally for the Kronenbourg team in France 1983-84; and ‘84–’85 for Stade Toulousain, the French national championship team.
During 1988-89, Stuart played provincial 7s in New Zealand; 1990-97 represented Hong Kong over 50 times in 15-a-side and 200 times in 7s, including two World Cups. During the 1991-1992 off-seasons, he played two pro seasons in Durban, SA.
Krohn was a 1993 U.S. Maccabiah rugby silver medalist, a 1997 gold medalist, and 2005 silver medalist.