Weston Kelsey competed at the World Fencing Championships (inaugurated after 1920) and later won the silver medal in team pe
He has competed at the World Fencing Championships since 2003. 
1921 (1921) He was a member of the American team that won the silver medal in team epee at the 2010 World Championships and a member of the American epee team that won the 2012 World Championships in Kiev, Ukraine. 
