Merion's East Course has been host to 19 USGA Championships
*Merion hosted the 2005 U.S. Amateur to coincide with the 75th anniversary of Robert T. Jones, Jr.'s completion of the "Grand Slam" in 1930.
- 1904 Women's Amateur – Georgianna Bishop
- 1909 Women's Amateur – Dorothy Campbell
- 1916 U.S. Amateur – Charles Evans, Jr.
- 1924 U.S. Amateur – Robert T. Jones, Jr.
- 1926 Women's Amateur – Mrs. Henry Stetson
- 1930 U.S. Amateur – Robert T. Jones, Jr.
- 1934 U.S. Open – Olin Dutra
- 1949 Women's Amateur – Mrs. Mark A. Porter
- 1950 U.S. Open – Ben Hogan
- 1954 Curtis Cup – United States
- 1960 World Amateur – United States (an international competition conducted by the International Golf Federation, not the USGA)
- 1966 U.S. Amateur – Gary Cowan
- 1971 U.S. Open – Lee Trevino
- 1981 U.S. Open – David Graham
- 1989 U.S. Amateur – Chris Patton
- 1998 U.S. Girl's Junior – Leigh Anne Hardin
- 2005 U.S. Amateur* – Edoardo Molinari
- 2009 Walker Cup – United States
- 2013 U.S. Open – Justin Rose
- Four United States Women's Amateur Championships
- Six United States Amateur Championships
- Five United States Open Championships
- One Curtis Cup
- One World Amateur Championship
- One United States Girl's Junior Amateur Championship
- One Walker Cup