List of Philadelphia and Kansas City Athletics Opening Day starting pitchers

[3] Chick Fraser was the Opening Day starter for that game, which the Athletics lost to the Washington Senators by a score of 5–1.

[4] Lefty Grove and Alex Kellner had the most Opening Day starts for the Philadelphia and Kansas City Athletics with four.

Eddie Plank (1904, 1909, 1910), Chief Bender (1905, 1906, 1911), Jack Coombs (1907, 1912, 1913), Scott Perry (1919–1921) and Phil Marchildon (1942, 1947, 1948) each made three Opening Day starts for the Philadelphia and Kansas City Athletics.

The other pitchers who made multiple Opening Day starts for the Philadelphia and Kansas City Athletics are Bullet Joe Bush, Sugar Cain, Chubby Dean, Lum Harris, Slim Harriss and Bobby Shantz.

[6] When the Athletics moved to Kansas City in 1955, Alex Kellner was the Opening Day starting pitcher.

In the seasons in which the Athletics won the World Series, their Opening Day starting pitchers were Plank (1910), Bender (1911), Coombs (1913), Carroll Yerkes (1929) and Grove (1930).

Eddie Plank made three Opening Day starts for the Athletics.
Rube Waddell was the Athletics' Opening Day starting pitcher in 1903.
Chief Bender made three Opening Day starts for the Athletics.
Hall of Famer Herb Pennock was the Athletics Opening Day starter in 1915.
Catfish Hunter made his first of four Opening Day starts for the Athletics franchise with the Kansas City Athletics in 1966.