List of Baltimore Orioles (1882–1899) Opening Day starting pitchers

[1] The Orioles used 10 Opening Day starting pitchers in their 18 years as a Major League Baseball franchise.

[4] The team's first game as a member of the National League was played on April 12, 1892 against the Brooklyn Bridegrooms at Union Park in Baltimore.

[5] The last Opening Day game in Orioles' history was played on April 15, 1899 against the New York Giants at Union Park.

[5][7][8][9][10] Matt Kilroy was the Orioles' Opening Day starting pitcher four times, every year from 1886 to 1889.

[1] McMahon was the Orioles' Opening Day starting pitcher in two of those championship seasons, in 1894 and 1896.