A sitting United States President first threw out a ceremonial first pitch in 1910, a tradition started by William Howard Taft. A look at ceremonial first pitches by presidents in baseball history:
1910: William Howard Taft, Washington Senators (opening day, win)
1911: William Howard Taft, Washington Senators (opening day, win)
1913: Woodrow Wilson, Washington Senators (opening day, win)
1915: Woodrow Wilson, Washington Senators (opening day, win)
1915: Woodrow Wilson, Philadelphia Phillies (Game 2, World Series, loss)
1916: Woodrow Wilson, Washington Senators (opening day, win)
1921: Warren Harding, Washington Senators (opening day, loss)
1922: Warren Harding, Washington Senators (opening day, win)
1923: Warren Harding, Washington Senators (opening day, win)
1924: Calvin Coolidge, Washington Senators (opening day, win)
1924: Calvin Coolidge, Washington Senators (Game 1, World Series, loss)
1925: Calvin Coolidge, Washington Senators (opening day, win)
1925: Calvin Coolidge, Washington Senators (Game 3, World Series, win)
1927: Calvin Coolidge, Washington Senators (opening day, win)
1928: Calvin Coolidge, Washington Senators (opening day, loss)
1929: Herbert Hoover, Washington Senators (opening day, loss)
1929: Herbert Hoover, Philadelphia Athletics (Game 1, World Series, win)
1930: Herbert Hoover, Washington Senators (opening day, loss)
1930: Herbert Hoover, Philadelphia Athletics (Game 3, World Series, loss)
1931: Herbert Hoover, Washington Senators (opening day, loss)
1932: Herbert Hoover, Washington Senators (opening day, loss)
1933: Franklin Roosevelt, Washington Senators (opening day, win)
1933: Franklin Roosevelt, Washington Senators (Game 3, World Series, win)
1934: Franklin Roosevelt, Washington Senators (opening day, loss)
1935: Franklin Roosevelt, Washington Senators (opening day, loss)
1936: Franklin Roosevelt, Washington Senators (opening day, win)
1936: Franklin Roosevelt, New York Yankees (Game 2, World Series, win)
1937: Franklin Roosevelt, Washington Senators (opening day, loss)
1937: Franklin Roosevelt, Washington (All-Star Game)
1938: Franklin Roosevelt, Washington Senators (opening day, win)
1940: Franklin Roosevelt, Washington Senators (opening day, loss)
1941: Franklin Roosevelt, Washington Senators (opening day, loss)
1946: Harry Truman, Washington Senators (opening day, loss)
1947: Harry Truman, Washington Senators (opening day, loss)
1948: Harry Truman, Washington Senators (opening day, loss)
1949: Harry Truman, Washington Senators (opening day, win)
1950: Harry Truman, Washington Senators (opening day, win)
1951: Harry Truman, Washington Senators (opening day, win)
1952: Harry Truman, Washington Senators (opening day, loss)
1953: Dwight Eisenhower, Washington Senators (opening day, loss)
1954: Dwight Eisenhower, Washington Senators (opening day, win)
1955: Dwight Eisenhower, Washington Senators (opening day, win)
1956: Dwight Eisenhower, Washington Senators (opening day, loss)
1956: Dwight Eisenhower, Brooklyn Dodgers (Game 1, World Series, win)
1957: Dwight Eisenhower, Washington Senators (opening day, loss)
1958: Dwight Eisenhower, Washington Senators (opening day, win)
1959: Dwight Eisenhower, Washington Senators (opening day, win)
1960: Dwight Eisenhower, Washington Senators (opening day, win)
1961: John Kennedy, Washington Senators (opening day, loss)
1962: John Kennedy, Washington Senators (opening day, win)
1963: John Kennedy, Washington Senators (opening day, loss)
1964: Lyndon Johnson, Washington Senators (opening day, loss)
1965: Lyndon Johnson, Washington Senators (opening day, loss)
1967: Lyndon Johnson, Washington Senators (opening day, loss)
1969: Richard Nixon, Washington Senators (opening day, loss)
1970: Richard Nixon, Cincinnati (All-Star Game)
1973: Richard Nixon, California Angels (opening day, win)
1976: Gerald Ford, Texas Rangers (opening day, win)
1976: Gerald Ford, Philadelphia (All-Star Game)
1979: Jimmy Carter, Baltimore Orioles (Game 7, World Series, loss)
1984: Ronald Reagan, Baltimore Orioles (opening day, loss)
1986: Ronald Reagan, Baltimore Orioles (opening day, loss)
1988: Ronald Reagan, Chicago Cubs (opening day, loss)
1989: George H.W. Bush, Baltimore Orioles (opening day, win)
1990: George H.W. Bush, Toronto Blue Jays (opening day, win)
1991: George H.W. Bush, Texas Rangers (opening day, loss)
1992: George H.W. Bush, Baltimore Orioles (opening day, win)
1993: Bill Clinton, Baltimore Orioles (opening day, loss)
1994: Bill Clinton, Cleveland Indians (opening day, win)
1996: Bill Clinton, Baltimore Orioles (opening day, win)
1997: Bill Clinton, New York Mets (opening day, win)
2000: Bill Clinton, San Francisco Giants (opening day, loss)
2001: George W. Bush, Milwaukee Brewers (opening day, win)
2001: George W. Bush, New York Yankees (Game 3, World Series, win)
2004: George W. Bush, St. Louis Cardinals (opening day, loss)
2005: George W. Bush, Washington Nationals (opening day, win)
2006: George W. Bush, Cincinnati Reds (opening day, loss)
2008: George W. Bush, Washington Nationals (opening day, win)
2009: Barack Obama, St. Louis (All-Star Game)
2010: Barack Obama, Washington Nationals (opening day)
