Championship Formats October 18, 2016

U.S. Open Championship

1895 to 1897 - Stroke play, one day of 36-hole competition 

1898 to 1903 - Stroke play, two days of 36-hole competition

1904 to 1913 - Stroke play, two days of 36-hole competition; field cut after 36 holes

1914 to 1916 - Stroke play, two days of 36-hole competition (no championships, 1917-1918) 

1919 - Stroke play, two days of 18-hole competition, one day of 36-hole competition; field cut after 36 holes

1920 to 1925 - Stroke play, two days of 36-hole competition

1926 to 1964 - Stroke play, two days of 18-hole competition, one day of 36-hole competition; field cut after 36 holes (no championships, 1942-45)

1965 to Present - Stroke play, four days of 18-hole competition; field cut after 36 holes

U.S. Open Playoff Formats

1895 to 1925 - 18-hole playoff

1925 to 1927 - 18-hole playoff, the day after regulation play

1928 to 1931 - 36-hole playoff, the day after regulation play

1932 to 1953 - 18-hole playoff, the day after regulation play

1954 to 2017 - 18-hole playoff, the day after regulation play; if playoff results in tie, play will immediately continue hole-by-hole until a winner is determined (sudden-death hole-by-hole)

2018 to present - 2-hole aggregate playoff the day of regulation play; if playoff results in tie, play will immediately continue hole-by-hole until a winner is determined (sudden-death hole-by-hole)

U.S. Women’s Open Championship

1946 - 36-hole stroke-play qualifying for 32 spots in match play; 18-hole final match

1947 to 1953 - Stroke play, four days of 18-hole competition; field cut after 36 holes

1954 to 1964 - Stroke play, two days of 18-hole competition, one day of 36-hole competition; field cut after 36 holes

1965 to Present - Stroke play, four days of 18-hole competition; field cut after 36 holes

U.S. Women's Open Playoff Formats

1953 to 2006 - 18 hole playoff, the day after regulation play

2007 to 2017 - three- or four-hole aggregate, immediately following final round

2018 to present - 2-hole aggregate playoff the day of regulation play; if playoff results in tie, play will immediately continue hole-by-hole until a winner is determined (sudden-death hole-by-hole)

U.S. Senior Open Championship

1980 to Present - Stroke play, four days of 18-hole competition; field cut after 36 holes

U.S. Senior Open Playoff Formats

1980 to 1998 - 18-hole playoff, the day after regulation play

1999 to 2017 - three- or four-hole aggregate, immediately following final round

2018 to present - 2-hole aggregate playoff the day of regulation play; if playoff results in tie, play will immediately continue hole-by-hole until a winner is determined (sudden-death hole-by-hole)

U.S. Senior Women's Open Championship

2018 to Present - Stroke play, four days of 18-hole competition; field cut after 36 holes

U.S. Senior Women's Open Playoff Formats

2018 to present - 2-hole aggregate playoff the day of regulation play; if playoff results in tie, play will immediately continue hole-by-hole until a winner is determined (sudden-death hole-by-hole)

U.S. Amateur Championship

1895 - Match play with a field of 32 players; 36-hole final match

1896 to 1897 - 36-hole stroke-play qualifying for 16 spots in match play; 36-hole final match

1898 to 1901 - 36-hole stroke-play qualifying for 32 spots in match play; 36-hole final match

1902 - 18-hole stroke-play qualifying for 64 spots in match play; 36-hole final match

1903 - Match play with a field of 128 players; 36-hole final match

1904 - 54-hole stroke-play qualifying for 32 spots in match play; 36-hole final match

1905 to 1924 - 36-hole stroke-play qualifying for 32 spots in match play; 36-hole final match (no championships, 1917-1918)

1925 - 36-hole stroke-play qualifying for 16 spots in match play; all matches at 36 holes

1926 to 1933 - 36-hole stroke-play qualifying for 32 spots in match play; 36-hole matches in the last three rounds

1934 to 1936 - Match play with fields of 185-208 players; 36-hole semifinal and final matches

1937 to 1941 - 36-hole stroke-play qualifying with 150-170 players competing for 64 spots in match play; 36-hole semifinal and final matches (no championships, 1942-1945)

1946 - Sectional stroke-play qualifying with 150 players competing for 64 spots in match play; 36-hole semifinal and final matches

1947 to 1963 - Match play with fields of 200-210 starters; 36-hole final match

1964 - 36-hole stroke-play qualifying for 64 spots in match play; 36-hole semifinal and final matches

1965 to 1972 - Stroke play, four days of 18-hole competition

1973 to 1978 - Match play with fields of 200 players; 36-hole semifinal and final matches

1979 to Present - 36-hole stroke-play qualifying for 64 spots in match play; 36-hole final match

U.S. Women’s Amateur Championship

1895 - Stroke play, one day of 18-hole competition; 18-hole final match

1896 to 1897 - 18-hole stroke-play qualifying for eight spots in match play; 18-hole final match

1898 to 1901 - 18-hole stroke-play qualifying for 16 spots in match play; 18-hole final match

1902 to 1919 - 18-hole stroke-play qualifying for 32 spots in match play; 18-hole final match (no championships, 1917-1918) 

1920 to 1933 - 18-hole stroke-play qualifying for 32 spots in match play; 36-hole final match 

1934 - 18-hole stroke-play qualifying for 64 spots in match play; 36-hole final match

1935 - 18-hole stroke-play qualifying for 64 spots in match play; 18-hole final match

1936 to 1937 - 18-hole stroke-play qualifying for 64 spots in match play; 36-hole final match

1938 - 18-hole stroke-play qualifying for 64 spots in match play; 18-hole final match

1940 to 1941 - 18-hole stroke-play qualifying for 64 spots in match play; 36-hole final match (no championships, 1942-1945)

1946 - 36-hole stroke-play qualifying for 32 spots in match play; 36-hole final match

1947 - 18-hole stroke-play qualifying for 32 spots in match play; 36-hole final match

1948 - 18-hole stroke-play qualifying for 64 spots in match play; 36-hole final match

1949 - Match play with a field of 128 players; 36-hole final match

1950 - Match play with a field of 110 players; 36-hole final match

1951 to 1952 - 18-hole stroke-play qualifying for 64 spots in match play; 36-hole final match

1953 to 1963 - Match play with fields of 100-195 players; 36-hole final match

1964 to 1972 - 36-hole stroke-play qualifying for 32 spots in match play; 36-hole final match

1973 to 1979 - 18-hole stroke-play qualifying for 64 spots in match play; 36-hole final match

1980 to 1981 - 36-hole stroke-play qualifying for 64 spots in match play; 18-hole final match

1982 to Present - 36-hole stroke-play qualifying for 64 spots in match play; 36-hole final match

U.S. Junior Amateur Championship

1948 to 1964 - Match play with a field of 128 players; 18-hole final match

1965 to 2004 - 36-hole stroke-play qualifying for 64 spots in match play; 18-hole final match

2005 to Present - 36-hole stroke-play qualifying for 64 spots in match play; 36-hole final match

U.S. Girls’ Junior Championship

1949 - Match play with a field of 32 players; 18-hole final match 

1950 to 1954 - 18-hole stroke-play qualifying for 16 spots in match play; 18-hole final match

1955 - Match play with a field of 72 players; 18-hole final match

1956 to 1963 - 18-hole stroke-play qualifying for 16 spots in match play; 18-hole final match

1964 to 1978 - 36-hole stroke-play qualifying for 32 spots in match play; 18-hole final match

1979 to 2005 - 36-hole stroke-play qualifying for 64 spots in match play; 18-hole final match

2006 to Present - 36-hole stroke-play qualifying for 64 spots in match play; 36-hole final match

U.S. Mid-Amateur Championship 

1981 to 2000 - 36-hole stroke-play qualifying for 64 spots in match play; 18-hole final match

2001 to Present - 36-hole stroke-play qualifying for 64 spots in match play; 36-hole final match

U.S. Women’s Mid-Amateur Championship 

1987 to Present - 36-hole stroke-play qualifying for 64 spots in match play; 18-hole final match 

U.S. Senior Amateur Championship

1955 to 1962 - 18-hole stroke-play qualifying for 32 spots in match play; 18-hole final match

1963 - Match play with a field of 128 players; 18-hole final match

1964 to 1982 - 36-hole stroke-play qualifying for 32 spots in match play; 18-hole final match

1983 to Present - 36-hole stroke-play qualifying for 64 spots in match play; 18-hole final match

U.S. Amateur Four-Ball Championship

2015 to Present - 36-hole stroke-play qualifying for 32 spots in match play; 18-hole final match

U.S. Women’s Amateur Four-Ball Championship

2015 to Present - 36-hole stroke-play qualifying for 32 spots in match play; 18-hole final match

USGA Men’s State Team Championship

1995 to 2014 - Stroke play, three days of 18-hole competition, two lowest scores by players on each team count

2016 to Present - Stroke play, three days of 18-hole competition, two lowest scores by players on each team count; field cut after 36 holes

USGA Women’s State Team Championship

1995 to 2013 - Stroke play, three days of 18-hole competition, two lowest scores by players on each team count

2015 to Present - Stroke play, three days of 18-hole competition, two lowest scores by players on each team count; field cut after 36 holes

U.S. Amateur Public Links Championship (1922-2014)

1922 to 1933 - 36-hole stroke-play qualifying for 32 spots in match play; 36-hole final match

1934 to 1947 - 36-hole stroke-play qualifying for 64 spots in match play; 36-hole final match (no championships, 1942-1945)

1948 to 1955 - Match play with fields of 200-210 players; 36-hole final match

1956 to 1966 - 36-hole stroke-play qualifying for 64 spots in match play; 36-hole final match

1967 to 1974 - Stroke play, four days of 18-hole competition

1975 to 2014 - 36-hole stroke-play qualifying for 64 spots in match play; 36-hole final match

U.S. Women’s Amateur Public Links Championship (1977-2014)

1977 to 1998 - 36-hole stroke-play qualifying for 32 spots in match play; 18-hole final match

1999 to 2001 - 36-hole stroke-play qualifying for 64 spots in match play; 18-hole final match

2002 to 2014 - 36-hole stroke-play qualifying for 64 spots in match play; 36-hole final match