MLB Single Season Leaders - Base on Balls

1. Matt Clement 125 (2000)
2. Chan Ho Park 124 (2000)
3. Brandon Webb 119 (2004)
4. Carlos Zambrano 115 (2006)
5. Russ Ortiz 112 (2000)
-- Ryan Dempster 112 (2001)
-- Russ Ortiz 112 (2004)
8. Danny Cabrera 108 2007)
9. Kazuhisa Ishii 106 (2002)
-- Victor Zambrano 106 (2003)
11. Shawn Estes 105 (2004)
--- Oliver Perez 105 (2008)
13. Danny Cabrera 104 (2006)
14. Ubaldo Jimenez 103 (2008)
--- Doug Davis 103 (2009)
16. Russ Ortiz 102 (2003)
--- Victor Zambrano 102 (2004)
--- Doug Davis 102 (2006)
--- Barry Zito 102 (2008)
20. Hideo Nomo 101 (2002)
--- Kazuhisa Ishii 101 (2003)
--- Jason Jennigs 101 (2004)
--- Carlos Zambrano 101 (2007)