2012 - Andy Murray
2011 - Novak Djokovic
2010 - Rafael Nadal
2009 - Juan Martin del Potro
2008 - Roger Federer
2007 - Roger Federer
2006 - Roger Federer
2005 - Roger Federer
2004 - Roger Federer
2003 - Andy Roddick
2002 - Pete Sampras
2001 - Lleyton Hewitt
2000 - Marat Safin
1999 - Andre Agassi
1998 - Patrick Rafter
1997 - Patrick Rafter
1996 - Pete Sampras
1995 - Pete Sampras
1994 - Andre Agassi
1993 - Pete Sampras
1992 - Stefan Edberg
1991 - Stefan Edberg
1990 - Pete Sampras
1989 - Boris Becker
1988 - Mats Wilander
1987 - Ivan Lendl
1986 - Ivan Lendl
1985 - Ivan Lendl
1984 - John McEnroe
1983 - Jimmy Connors
1982 - Jimmy Connors
1981 - John McEnroe
1980 - John McEnroe
1979 - John McEnroe
1978 - Jimmy Connors
1977 - Guillermo Vilas
1976 - Jimmy Connors
1975 - Manuel Orantes
1974 - Jimmy Connors
1973 - John Newcombe
1972 - Ilie Nastase
1971 - Stan Smith
1970 - Ken Rosewall
1969 - Rod Laver
1968 - Arthur Ashe
1967 - John Newcombe
1966 - Fred Stolle
1965 - Manolo Santana
1964 - Roy Emerson
1963 - Rafael Osuna
1962 - Rod Laver
1961 - Roy Emerson
1960 - Neale Fraser
1959 - Neale Fraser
1958 - Ashley Cooper
1957 - Mal Anderson
1956 - Ken Rosewall
1955 - Tony Trabert
1954 - Vic Seixas
1953 - Tony Trabert
1952 - Frank Sedgman
1951 - Frank Sedgman
1950 - Art Larsen
1949 - Pancho Gonzales
1948 - Pancho Gonzales
1947 - Jack Kramer
1946 - Jack Kramer
1945 - Frank Parker
1944 - Frank Parker
1943 - Joe Hunt
1942 - Ted Schroeder
1941 - Bobby Riggs
1940 - Donald McNeill
1939 - Bobby Riggs
1938 - Don Budge
1937 - Don Budge
1936 - Fred Perry
1935 - Wilmer Allison
1934 - Fred Perry
1933 - Fred Perry
1932 - Ellsworth Vines
1931 - Ellsworth Vines
1930 - John Doeg
1929 - Bill Tilden
1928 - Henri Cochet
1927 - Rene Lacoste
1926 - Rene Lacoste
1925 - Bill Tilden
1924 - Bill Tilden
1923 - Bill Tilden
1922 - Bill Tilden
1921 - Bill Tilden
1920 - Bill Tilden
1919 - Bill Johnston
1918 - Lindley Murray
1917 - Lindley Murray
1916 - Dick Williams
1915 - Bill Johnston
1914 - Dick Williams
1913 - Maurice McLoughlin
1912 - Maurice McLoughlin
1911 - Bill Larned
1910 - Bill Larned
1909 - Bill Larned
1908 - Bill Larned
1907 - Bill Larned
1906 - Bill Clothier
1905 - Beals C. Wright
1904 - Holcombe Ward
1903 - Laurie Doherty
1902 - Bill Larned
1901 - Bill Larned
1900 - Malcolm Whitman
1899 - Malcolm Whitman
1898 - Malcolm Whitman
1897 - Robert Wrenn
1896 - Robert Wrenn
1895 - Fred Hovey
1894 - Robert Wrenn
1893 - Robert Wrenn
1892 - Oliver Campbell
1891 - Oliver Campbell
1890 - Oliver Campbell
1889 - Henry Slocum, Jr.
1888 - Henry Slocum, Jr.
1887 - Richard Sears
1886 - Richard Sears
1885 - Richard Sears
1884 - Richard Sears
1883 - Richard Sears
1882 - Richard Sears
1881 - Richard Sears
Prior to 1968, the United States National Championships was an amateur event. It became the U.S. Open in 1968 when the tournament was open to professionals.
