Open golf tournament

The descriptor open is used in a number of sports, and especially in golf, to describe a tournament that is "open" — in theory to all — rather than being closed, i.e. one that is restricted to a particular group.[1] Thus, an amateur tournament, e.g. the U.S. Amateur, is not by definition "open", because it is closed to professional golfers; however many are titled as such since they are open to all amateurs, e.g. the English Men's Open Amateur Stroke Play Championship for the Brabazon Trophy. The first precise usage of the adjective “open” in golf was in 1861 when the Prestwick Golf Club "opened" its Medal competition (launched the previous year for professionals only) to amateurs as well; ever since, The Open Championship has been open to all. Any golfer can, in theory, play in The Open either by invitation or by various forms of qualification. In practice, the event is a professional tournament in which a small number of the world’s leading amateurs also play, by invitation or qualification.[2]

Over time the descriptor "open" has been extended to include the premier national tournaments of many countries (starting with the U.S. Open in 1895) and also (mainly in the United States) to some other tournaments, e.g. the Buick Open.[2]

This is a list of the national Opens that have featured on the principal tours.

Legend
	Currently played on the respective tour
	Formerly included on the respective tour

Men's tournaments

National Opens
Tour		MAJ	PGAT	EUR	JPN	ASA	AFR	ANZ	KFT	CHA	ONE	KOR	PGATLA	TLA	EPT	ALP	PGT	NGL	CHN	PGTI	ATGT
North America
	Bahamas Open
	Canadian Open
	Costa Rica Open
	Dominican Republic Open
	Guatemala Open
	Honduras Open
	Mexican Open
	Panama Open
	Puerto Rico Open
	U.S. Open
Europe
	The Open Championship
	Austrian Open
	Belgian Open
	Cyprus Open
	Czech Open
	Danish Open
	Dutch Open
	English Open
	Finnish Open
	French Open
	German Open
	Irish Open
	Italian Open
	Jersey Open
	Luxembourg Open
	Northern Ireland Open
	Norwegian Open
	Polish Open
	Portuguese Open
	Russian Open
	Scottish Open
	Slovenian Open
	Spanish Open
	Swiss Open
	Turkish Open
	Wales Open
Asia
	Azerbaijan Open
	Bangladesh Open
	Brunei Open
	Cambodian Open
	China Open
	Hong Kong Open
	Indian Open
	Indonesia Open
	Japan Open
	Jordan Open
	Kazakhstan Open
	Korea Open
	Macau Open
	Malaysian Open
	Myanmar Open
	Oman Open
	Pakistan Open
	Philippine Open
	Saudi Open
	Singapore Open
	Taiwan Open
	Thailand Open
	Vietnam Open
Oceania
	Australian Open
	Guam Open
	New Zealand Open
	Papua New Guinea Open
Africa
	Botswana Open
	Egyptian Open
	Ivory Coast Open
	Kenya Open
	Mauritius Open
	Moroccan Open
	Namibia Open
	Nigerian Open
	South African Open
	Swaziland Open
	Tunisian Open
	Zambia Open
	Zimbabwe Open
South America
	Argentine Open
	Brazil Open
	Chile Open
	Colombian Open
	Ecuador Open
	Peru Open
	Venezuela Open

Women's tournaments

National Ladies Opens
Tour		LPGA	LET	ALPG	JLPGA	KLPGA	CLPGA	LAGT	AFR
North America
	U.S. Women's Open
	Canadian Women's Open
Europe
	Women's British Open
	Austrian Ladies Open
	Belgian Ladies Open
	Czech Ladies Open
	Danish Ladies Open
	Dutch Ladies Open
	Ladies English Open
	Ladies French Open
	Ladies German Open
	Ladies Guernsey Open
	Ladies Irish Open
	Ladies Italian Open
	Northern Ireland Ladies Open
	Ladies Portuguese Open
	Ladies Scottish Open
	Ladies Slovak Open
	Ladies Spanish Open
	Ladies Swiss Open
	Women's Welsh Open
Asia
	Brunei Ladies Open
	China Ladies Open
	Hong Kong Ladies Open
	Women's Indian Open
	Indonesia Ladies Open[3]
	Japan Women's Open
	Korea Women's Open
	Macau Ladies Open
	Malaysia Ladies Open[3]
	Philippines Ladies Open
	Singapore Ladies Open[3]
	Taiwan Ladies Open
	Thailand Ladies Open
Australasia
	Women's Australian Open
	New Zealand Women's Open
MENA
	Jordan Mixed Open
	Qatar Ladies Open
	Turkish Ladies Open
Africa
	Kenya Ladies Open
	South African Women's Open
	Zambia Ladies Open