Jeff Ball debuted on June 10, 1998, playing for the San Francisco Giants at 3Com Park; he played his final game on June 16, 1998, playing for the San Francisco Giants at 3Com Park.
Pitcher
Jeff Austin debuted on June 26, 2001, playing for the Kansas City Royals at Kauffman Stadium; he played his final game on May 28, 2003, playing for the Cincinnati Reds at Great American Ball Park.
Jeff D'Amico debuted on June 28, 1996 and played his final game on May 10, 2004.
Jeff Barry debuted on June 9, 1995 and played his final game on October 3, 1999.
Jeff Abbott debuted on June 10, 1997 and played his final game on September 29, 2001.
Jeff Baisley debuted on September 9, 2008 and played his final game on September 28, 2008.
Jeff Bajenaru debuted on September 4, 2004 and played his final game on August 7, 2006.
Jeff Baker debuted on April 4, 2005 and played his final game on September 27, 2013.
Jeff Baldwin debuted on May 22, 1990 and played his final game on June 4, 1990.
Jeff Ballard debuted on May 9, 1987 and played his final game on July 8, 1994.
Jeff Banister debuted on July 23, 1991 and played his final game on July 23, 1991.