Rules of golf to update and modernize the Rules, media outlets considered the ruling to be a response to an incident from the 2017 ANA Inspiration tournament, where Lexi Thompson was retroactively penalized four strokes from her third round score for mis-placing a ball, as reported by a television viewer, going as far as nicknaming it the "Lexi Thompson rule". Rules of golf The rules of golf consist of a standard set of regulations and procedures by which the sport of golf should be played and prescribe penalties for rule infractions. They are jointly written and administered by the R&A (spun off from
Eight-ball relatively simple rules compared to today and was not added (under any name) to an official rule book (i.e., one published by a national or international sport governing body) until 1940. American-style eight-ball rules are played around the world by professionals, and in many amateur leagues. Nevertheless, the rules for eight-ball may be the most contested of any billiard game. There are several competing sets of "official" rules. The non-profit World Pool-Billiard Association (WPA) – with national affiliates around the world, some of which long pre-date the WPA, such as the Billiard Congress of America (BCA) – promulgates standardized rules