Infielder Rey Sanchez and outfielder Ichiro Suzukiwere both 5 feet, 9 inches
* 2003 Jamie Moyer, Seattle Mariners
Aaron Looper debuted on August 2, 2003, playing for the Seattle Mariners at Safeco Field; he played his final game on September 28, 2003, playing for the Seattle Mariners at Safeco Field.
Kazuhiro Sasaki debuted on April 5, 2000, playing for the Seattle Mariners at Safeco Field; he played his final game on September 28, 2003, playing for the Seattle Mariners at Safeco Field.
Jamal Strong debuted on September 2, 2003, playing for the Seattle Mariners at Safeco Field; he played his final game on September 11, 2005, playing for the Seattle Mariners at Safeco Field.
Brian Sweeney debuted on August 16, 2003, playing for the Seattle Mariners at Safeco Field; he played his final game on October 1, 2010, playing for the Seattle Mariners at Safeco Field.
Luis Ugueto debuted on April 3, 2002, playing for the Seattle Mariners at Safeco Field; he played his final game on September 23, 2003, playing for the Seattle Mariners at Safeco Field.
Willie Bloomquist played in 10 games at designated hitter for the Seattle Mariners in 2003, starting in none of them. , equivalent to 0 errors per game (estimate based on total games played in).
Pat Borders played in just one game at designated hitter for the Seattle Mariners in 2003 and did not start. , equivalent to 0 errors per game (estimate based on total games played in).
Greg Colbrunn played in 4 games at designated hitter for the Seattle Mariners in 2003, starting in none of them. , equivalent to 0 errors per game (estimate based on total games played in).
Ben Davis played in just one game at designated hitter for the Seattle Mariners in 2003 and did not start. , equivalent to 0 errors per game (estimate based on total games played in).
Carlos Guillen played in just one game at designated hitter for the Seattle Mariners in 2003 and did not start. , equivalent to 0 errors per game (estimate based on total games played in).
John Mabry played in 11 games at designated hitter for the Seattle Mariners in 2003, starting in none of them. , equivalent to 0 errors per game (estimate based on total games played in).