Oscar Zamora debuted on June 18, 1974, playing for the Chicago Cubs at Wrigley Field; he played his final game on July 21, 1978, playing for the Houston Astros at Astrodome.
Oscar Purner debuted on September 2, 1895, playing for the Washington Senators at Boundary Field; he played his final game on September 2, 1895, playing for the Washington Senators at Boundary Field.
Oscar Siemer debuted on May 20, 1925, playing for the Boston Braves at Braves Field; he played his final game on September 18, 1926, playing for the Boston Braves at Braves Field.
Oscar Fuhr debuted on April 19, 1921, playing for the Chicago Cubs at Wrigley Field; he played his final game on September 26, 1925, playing for the Boston Red Sox at Fenway Park I.
Oscar Roettger debuted on July 7, 1923, playing for the New York Yankees at Yankee Stadium I; he played his final game on June 27, 1932, playing for the Philadelphia Athletics at Shibe Park.
Oscar Dugey debuted on September 13, 1913 and played his final game on August 15, 1920.
Oscar Dugey played in 4 games at outfield for the Philadelphia Phillies in 1917, starting in none of them. He made 5 putouts, had 3 assists, and committed no errors, equivalent to 0 errors per game (estimate based on total games played in). He had one double play.
Oscar Dugey played in 14 games at second base for the Philadelphia Phillies in 1915, starting in none of them. He made 10 putouts, had 22 assists, and committed 2 errors, equivalent to .143 errors per game (estimate based on total games played in). He had one double play.
Oscar Azocar debuted on July 17, 1990 and played his final game on October 4, 1992.
Oscar Bielaski debuted on April 24, 1872 and played his final game on July 21, 1876.
Oscar Brown debuted on September 3, 1969 and played his final game on September 30, 1973.
Oscar Estrada debuted on April 21, 1929 and played his final game on April 21, 1929.
NFL player Oscar Johnson played for Louisiana Tech.
Oscar Henriquez debuted on September 7, 1997, playing for the Houston Astros at Astrodome; he played his final game on September 8, 2002, playing for the Detroit Tigers at Comerica Park.
Oscar Zamora debuted on June 18, 1974, playing for the Chicago Cubs at Wrigley Field; he played his final game on July 21, 1978, playing for the Houston Astros at Astrodome.
Oscar Purner debuted on September 2, 1895, playing for the Washington Senators at Boundary Field; he played his final game on September 2, 1895, playing for the Washington Senators at Boundary Field.
Oscar Siemer debuted on May 20, 1925, playing for the Boston Braves at Braves Field; he played his final game on September 18, 1926, playing for the Boston Braves at Braves Field.