Definition: Definitions from the Official Rules of Golf appear courtesy of the USGA.
Competitor: A "competitor" is a player in a stroke play competition. A "fellow-competitor" is any person with whom the competitor plays. Neither is partner of the other.
In stroke play foursome and four-ball competitions, where the context so admits, the word "competitor" or "fellow-competitor" includes his partner.
©USGA, used with permission
