Rudy Kallio debuted on April 25, 1918, playing for the Detroit Tigers at Navin Field; he played his final game on May 12, 1925, playing for the Boston Red Sox at Fenway Park I.
Rudy Kallio played in 12 games at pitcher for the Detroit Tigers in 1919, starting in none of them. He made one putout, had 4 assists, and committed no errors, equivalent to 0 errors per game (estimate based on total games played in). He had one double play.
Rudy Arias debuted on April 10, 1959 and played his final game on August 26, 1959.
Rudy Bell debuted on September 16, 1907 and played his final game on October 5, 1907.
Rudy Meoli debuted on September 9, 1971, playing for the at ; he played his final game on June 8, 1979, playing for the Philadelphia Phillies at Veterans Stadium.
NBA player Rudy Gay played for Connecticut.
Rudy Kneisch debuted on September 21, 1926, playing for the Detroit Tigers at Navin Field; he played his final game on September 26, 1926, playing for the Detroit Tigers at Navin Field.
Rudy Miller debuted on September 19, 1929, playing for the Philadelphia Athletics at Shibe Park; he played his final game on September 20, 1929, playing for the Philadelphia Athletics at Shibe Park.
Rudy York debuted on August 22, 1934, playing for the Detroit Tigers at Navin Field; he played his final game on September 20, 1948, playing for the Philadelphia Athletics at Shibe Park.
Rudy Seanez debuted on September 7, 1989, playing for the Cleveland Indians at Cleveland Stadium; he played his final game on September 28, 2008, playing for the Philadelphia Phillies at Citizens Bank Park.
Rudy Arroyo debuted on June 1, 1971 and played his final game on June 24, 1971.
Rudy Arias debuted on April 10, 1959, playing for the Chicago White Sox at Comiskey Park; he played his final game on August 26, 1959, playing for the Chicago White Sox at Comiskey Park.
Rudy Bell debuted on September 16, 1907, playing for the New York Highlanders at Hilltop Park; he played his final game on October 5, 1907, playing for the New York Highlanders at Hilltop Park.