United States Golf Association

An "open" golf championship is one that both professionals and amateurs may enter. In practice, such events are always won by professionals nowadays. The two leading opens in the U.S. are:

• U.S. Open – no age or gender restrictions, Handicap Index requirement of 1.4 or less. Established in 1895, it is the second-oldest of the four major championships.
• U.S. Women's Open – females, no age restrictions, Handicap Index requirement of 2.4 or less. Established in 1946 and administered by the USGA since 1953, it is the oldest of the five women's majors.

The last win by an amateur at the U.S. Open was 90 years ago in 1933 and an amateur has won the women's event only once, 56 years ago in 1967.

The USGA also conducts the U.S. Senior Open for competitors 50 and over. This is one of the five majors recognized by the world's dominant tour for golfers 50 and over, PGA Tour Champions. The overwhelming majority of the competitors play regularly on this tour. Many of the remaining players compete on the European counterpart of PGA Tour Champions, the European Senior Tour, which recognizes the U.S. Senior Open as one of its three majors. The USGA added a women's counterpart in 2018.

• U.S. Senior Open – no gender restriction, players age 50 & older, handicap index requirement of 3.4 or less, established in 1980.
• U.S. Senior Women's Open – women's players age 50 & older with a handicap index of 7.4 or less, established in 2018.[5]

Professional golf in the US is mainly run by the PGA Tour, the LPGA, and the PGA of America. However, the USGA organizes the 10 national amateur championships. The leading events are open to all age groups, but are usually won by golfers in their early twenties:

• U.S. Amateur – no age or gender restrictions, handicap index of 2.4 or less, established in 1895.
• U.S. Women's Amateur – no age restrictions, females with a handicap index of 5.4 or less, established in 1895.

There are two championships for players under age 19:

• U.S. Girls' Junior – girls with a handicap index of 9.4 or less, established in 1949
• U.S. Junior Amateur – no gender restriction, handicap index of 4.4 or less, established in 1948

And two for senior golfers:

• U.S. Senior Amateur – no gender restriction, players age 55 & older, handicap index of 7.4 or less, established in 1955
• U.S. Senior Women's Amateur – women age 50 & older with a handicap index of 18.4 or less, established in 1962

Because the U.S. Amateur and U.S. Women's Amateur became increasingly dominated by future tournament professionals, two national championships were added in the 1980s for "career amateurs" who were 25 years of age & older:

• U.S. Mid-Amateur – no gender restriction, players age 25 & older, handicap index of 3.4 or less, established in 1981
• U.S. Women's Mid-Amateur – women age 25 & older with a handicap index of 9.4 or less, established in 1987

These team events were announced by the USGA in 2013 as the replacements for the discontinued Public Links championships and played for the first time in 2015. Both are contested by two-member teams in four-ball matches. Partners are not required to be from the same club, political subdivision, or country.[6]

• U.S. Amateur Four-Ball – no age or gender restrictions; handicap index of 5.4 or less
• U.S. Women's Amateur Four-Ball – no age restrictions, females with a handicap index of 14.4 or less

The USGA men's and women's state team championships were first conducted in 1995 as a part of the USGA's Centennial celebration. The two championships were conducted biennially in odd-numbered years through 2009. Since 2010, the men's championship has been conducted in even-numbered years and the women's championship in odd-numbered years. According to NCAA rules, college golfers are not eligible.

• USGA Men's State Team Championship
• USGA Women's State Team Championship

The USGA, in cooperation with The R&A, co-organizes two biennial amateur team competitions between the United States and a joint team representing Great Britain and Ireland (in political terms, Ireland and the United Kingdom).

• Curtis Cup – 8-woman teams, played in even-numbered years. The 2018 edition was the first in which The R&A was directly involved. Previously, the Ladies' Golf Union was the co-organizer, but that body merged with The R&A in late 2016 (after that year's Curtis Cup had been played).
• Walker Cup – 10-man male teams, played in odd-numbered years.

Through its membership of the International Golf Federation the USGA is involved in the administration of the two "World Amateur Team Championships", which are played biennially in even-numbered years.

• Eisenhower Trophy – for men
• Espirito Santo Trophy – for women

There had been two events for "public-course" golfers, but the USGA announced in 2013 that both would be discontinued after their 2014 editions.[6] Members of private golf clubs were excluded from these championships.

• U.S. Amateur Public Links – popularly known as the "Publinx"; no gender restriction, handicap index of 4.4 or less, established in 1922 and discontinued in 2014
• U.S. Women's Amateur Public Links – popularly known as the "Women's Publinx"; women with a handicap index of 18.4 or less, established in 1977 and discontinued in 2014

Only eight golfers have won more than one USGA individual event in the same year:

• Chick Evans won the U.S. Open and U.S. Amateur in 1916. He went on to win the U.S. Amateur in 1920.
• Bobby Jones won the U.S. Open and U.S. Amateur as half of his historic Grand Slam in 1930. Jones had previously won three U.S. Opens (1923, 1926, 1929) and four U.S. Amateurs (1924, 1925, 1927, 1928).
• Jay Sigel won the U.S. Amateur and U.S. Mid-Amateur in 1983. He had won the U.S. Amateur in 1982 and would win the Mid-Am in 1985 and 1987.
• Pearl Sinn won the Women's Public Links and Women's Amateur in 1988. She successfully defended her Women's Publinx title in 1989.
• Ryan Moore won the U.S. Public Links and U.S. Amateur in 2004. He had previously won the Publinx in 2002.
• Colt Knost won the U.S. Public Links and U.S. Amateur in 2007.
• Jennifer Song won the Women's Public Links and Women's Amateur in 2009.
• Seong Eun-jeong won the Girls' Junior and Women's Amateur in 2016. She had previously won the Girls' Junior in 2015.

Six people have won three different USGA individual events in their careers:

• JoAnne Carner (née Gunderson) – Girls' Jr – 1956; Women's Am – 1957, 1960, 1962, 1966, 1968; Women's Open – 1971, 1976
• Arnold Palmer – Amat – 1954; Open – 1960; Sr Open – 1981
• Jack Nicklaus – Amat – 1959, 1961; Open – 1962, 1967, 1972, 1980; Sr Open – 1991, 1993
• Carol Semple Thompson – Women's Am – 1973; Women's Mid-Am – 1990, 1997; Sr Women's Am – 1999, 2000, 2001, 2002
• Tiger Woods – Jr Amat – 1991, 1992, 1993; Amat – 1994, 1995, 1996; Open – 2000, 2002, 2008
• Jill McGill – Women's Am – 1993; Women's Publinx – 1994; Sr Women's Open – 2022

Fifty–one other people have won two different USGA individual events in their careers, and three have won USGA individual and team events:

• Francis Ouimet – Open – 1913; Amat – 1914, 1931
• Jerome Travers – Amat – 1907, 1908, 1912, 1913; Open – 1915
• Johnny Goodman – Open – 1933; Amat – 1937
• Lawson Little – Amat – 1934, 1935; Open – 1940
• Patty Berg – Women's Am – 1938; Women's Open – 1946
• Betty Jameson – Women's Am – 1939, 1940; Women's Open – 1947
• Babe Zaharias – Women's Am – 1946; Women's Open – 1948, 1950, 1954
• Louise Suggs – Women's Am – 1947; Women's Open – 1949, 1952
• Mickey Wright – Girls' Jr – 1952; Women's Open – 1958, 1959, 1961, 1964
• Gene Littler – Amat – 1953; Open – 1961
• Catherine Lacoste – Women's Open – 1967; Women's Am – 1969
• Gene Andrews – Publinx – 1954; Sr Amat – 1970
• Johnny Miller – Jr Amat – 1964; Open – 1973
• Jerry Pate – Amat – 1974; Open – 1976
• Dorothy Germain Porter – Women's Am – 1949; Sr Women's Am – 1977, 1980, 1981, 1983
• Hollis Stacy – Girls' Jr – 1969, 1970, 1971; Women's Open – 1977, 1978, 1984
• William C. Campbell – Amat – 1964; Sr Amat – 1979, 1980
• Lori Castillo – Girls' Jr – 1978; Women's Publinx – 1979, 1980
• Amy Alcott – Girls' Jr – 1973; Women's Open – 1980
• Billy Casper – Open – 1959, 1966; Sr Open – 1983
• Heather Farr – Girls' Jr – 1982; Women's Publinx – 1984
• Marlene Streit (née Stewart) – Women's Am – 1956; Sr Women's Am – 1985, 1994, 2003
• Billy Mayfair – Publinx – 1986; Amat – 1987
• Gary Player – Open – 1965; Sr Open – 1987, 1988
• Anne Quast (aka Decker, Welts, Sander) – Women's Am – 1958, 1961, 1963; Women's Mid-Am – 1987, 1989, 1990, 1993
• Orville Moody – Open – 1969; Sr Open – 1989
• Pat Hurst – Girls' Jr – 1986; Women's Am – 1990
• Lee Trevino – Open – 1968, 1971; Sr Open – 1990
• Amy Fruhwirth – Women's Am – 1991; Women's Publinx – 1992
• Kelli Kuehne – Girls' Jr – 1994; Women's Am – 1995, 1996
• Dorothy Delasin – Girls' Jr – 1996; Women's Am – 1998
• Hale Irwin – Open – 1974, 1979, 1990; Sr Open – 1998, 2000
• Juli Inkster – Women's Am – 1980, 1981, 1982; Women's Open – 1999, 2002
• Bruce Fleisher – Amat – 1968; Sr Open – 2001
• Inbee Park – Girls' Jr – 2002; Women's Open – 2008, 2013
• Vinny Giles – Amat – 1972; Sr Amat – 2009
• Ellen Port – Women's Mid-Am – 1995, 1996, 2000, 2011; Sr. Women's Am – 2012, 2013, 2016
• Michelle Wie – Women's Publinx – 2003; Women's Open – 2014
• Joan Higgins – Women's Mid-Am – 2008; Sr. Women's Am – 2014
• Nathan Smith – Mid-Am – 2003, 2009, 2010, 2012; Four-Ball – 2015
• Jordan Spieth – Jr Amat – 2009, 2011; Open – 2015
• Ariya Jutanugarn – Girls' Jr – 2011; Women's Open – 2018
• Laura Davies – Women's Open – 1987; Sr. Women's Open – 2018
• Scott Harvey – Mid-Am – 2014; Four-Ball – 2019
• Bryson DeChambeau – Amat – 2015; Open – 2020
• Jim Furyk – Open – 2003; Sr Open – 2021
• Rose Zhang – Women's Am – 2020; Girls' Jr – 2021
• Annika Sörenstam – Women's Open – 1995, 1996, 2006; Sr. Women's Open – 2021
• Minjee Lee – Girls' Jr – 2012; Women's Open – 2022
• Matt Fitzpatrick – Amat – 2013; Open – 2022
• Nick Dunlap – Jr Amat – 2021; Amat – 2023
• Todd White – Four-Ball – 2015; Sr Amat – 2023

Note: Multiple winners of individual events can be found in that event's article.

• Bobby Jones: 9 – Open - 1923, 1926, 1929, 1930; Amat - 1924, 1925, 1927, 1928, 1930
• Tiger Woods: 9 – Jr Amat - 1991, 1992, 1993; Amat - 1994, 1995, 1996; Open - 2000, 2002, 2008
• JoAnne Carner: 8 – Girls' Jr - 1956; Women's Am - 1957, 1960, 1962, 1966, 1968; Women's Op - 1971, 1976
• Jack Nicklaus: 8 – Amat - 1959, 1961; Open - 1962, 1967, 1972, 1980; Sr Open - 1991, 1993
• Anne Quast (aka Decker, Welts, Sander): 7 – Women's Am - 1958, 1961, 1963; Sr Women's Am - 1987, 1990, 1992, 1993
• Ellen Port: 7 – Women's Mid-Am - 1995, 1996, 2000, 2011; Sr. Women's Am - 2012, 2013, 2016
• Carol Semple Thompson: 7 – Women's Am - 1973; Women's Mid-Am - 1990, 1997; Sr Women's Am - 1999, 2000, 2001, 2002
• Glenna Collett (Vare): 6 – Women's Am - 1922, 1925, 1928, 1929, 1930, 1935
• Hollis Stacy: 6 – Girls' Jr - 1969, 1970, 1971; Women's Open - 1977, 1978, 1984
• Jerome Travers: 5 – Amat - 1907, 1908, 1912, 1913; Open - 1915
• Mickey Wright: 5 – Girls' Jr - 1952; Women's Op - 1958, 1959, 1961, 1964
• Carolyn Cudone: 5 – Sr Women's Am - 1968-1972
• Dorothy Germain Porter: 5 – Women's Am - 1949; Sr. Women's Am - 1977, 1980, 1981, 1983
• Jay Sigel: 5 – Amat - 1982, 1983; Mid-Am - 1983, 1985, 1987
• Hale Irwin: 5 – Open - 1974, 1979, 1990; Sr Open 1998, 2000
• Juli Inkster: 5 – Women's Am - 1980, 1981, 1982; Women's Open - 1999, 2002
• Nathan Smith: 5 – Mid-Am – 2003, 2009, 2010, 2012; Four-Ball – 2015

The USGA partnered with World Golf Tour in 2009 to co-host the first annual Virtual USGA Championship online. The Virtual U.S. Open attracted hundreds of thousands of players from more than 180 countries. The first-place winner took home a replica of the U.S. Open trophy and won a trip for two to Pebble Beach for the next year's event.[7]