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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | WHIP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Ken Brandon | 0.82 | 2019 | |
| 2 | Jonathan Jenkins# | 0.83 | 2022 | |
| 3 | Tom Coughlans | 0.86 | 2012 | |
| 3 | Ryan Harrison | 0.86 | 2005 | |
| 5 | Ian Kennedy | 0.87 | 2009 | |
| 6 | Byron Guffin | 0.88 | 2014 | |
| 7 | Roger Bailey | 0.90 | 2007 | |
| 7 | Derek Duffy | 0.90 | 2003 | |
| 9 | Josh Towers | 0.91 | 2003 | |
| 9 | Les Huggins | 0.91 | 2014 | |
| 11 | Aaron Goodman | 0.92 | 2007 | |
| 12 | Ryan Sherman | 0.93 | 2011 | |
| 12 | Scott Winchester | 0.93 | 2003 | |
| 14 | Stanley High | 0.94 | 2017 | |
| 14 | Juan Montoya | 0.94 | 2012 | |
| 16 | Keith Compton | 0.95 | 2010 | |
| 16 | Nick Bradley | 0.95 | 2006 | |
| 16 | Craig Breslow | 0.95 | 2011 | |
| 19 | Donne Wall | 0.96 | 1996 | |
| 19 | Ron Evans | 0.96 | 2017 | |
| 19 | Dan Wilkerson# | 0.96 | 2023 | |
| 19 | Dave Márquez | 0.96 | 2016 | |
| 23 | Greg Perry# | 0.97 | 2023 | |
| 23 | Julio Teheran | 0.97 | 2015 | |
| 23 | Denny Bautista | 0.97 | 2007 | |
| 23 | Jair Jurrjens | 0.97 | 2013 | |
| 23 | Floyd Johnston | 0.97 | 2008 | |
| 23 | Doug Jones | 0.97 | 2022 | |
| 23 | Craig Breslow | 0.97 | 2010 | |
| 23 | Eric Pollock | 0.97 | 2005 | |
| 23 | Mark Redman | 0.97 | 2008 | |
| 23 | Zach Marshall | 0.97 | 2008 | |
| 33 | António González | 0.98 | 2018 | |
| 33 | Mike Wood | 0.98 | 2008 | |
| 35 | John Everhart# | 0.99 | 2022 | |
| 35 | Steve Hayes | 0.99 | 2017 | |
| 35 | Kris Benson | 0.99 | 2007 | |
| 35 | Dave Coggin | 0.99 | 2002 | |
| 35 | Dan McAllister | 0.99 | 2018 | |
| 35 | Bob Foreman | 0.99 | 2013 | |
| 35 | Kyle Lohse | 0.99 | 2012 | |
| 35 | Michael Randolph | 0.99 | 2007 | |
| 35 | Tyler Clippard | 0.99 | 2009 | |
| 35 | Juan Vega | 0.99 | 2015 | |
| 45 | John White | 1.00 | 2017 | |
| 45 | Nick Baker | 1.00 | 2015 | |
| 45 | Jesse Jones# | 1.00 | 2023 | |
| 45 | Jason Williams | 1.00 | 2015 | |
| 45 | Cameron Pierce | 1.00 | 2018 | |
| 45 | Jon Bennett | 1.00 | 2022 | |
| 45 | Dave Allen | 1.00 | 2008 | |
| 52 | Jerome Williams | 1.01 | 2011 | |
| 52 | Luke Prokopec | 1.01 | 2001 | |
| 52 | Jeremy Guthrie | 1.01 | 2010 | |
| 52 | Jeff Weaver | 1.01 | 2007 | |
| 52 | Dan Evans | 1.01 | 2013 | |
| 52 | Stephen Strasburg | 1.01 | 2011 | |
| 52 | Marty Harris | 1.01 | 2007 | |
| 52 | David Bush | 1.01 | 2005 | |
| 60 | Bob Schultz | 1.02 | 2012 | |
| 60 | Phil Barnes | 1.02 | 2013 | |
| 60 | Chris Montgomery | 1.02 | 2010 | |
| 60 | Roger Brown | 1.02 | 2019 | |
| 60 | Byron Guffin | 1.02 | 2020 | |
| 60 | Willie E Adams | 1.02 | 2008 | |
| 60 | Frank Larkin | 1.02 | 2001 | |
| 60 | Curt Cameron | 1.02 | 2004 | |
| 68 | Eddie James# | 1.03 | 2020 | |
| 68 | Kyle Lynch | 1.03 | 2014 | |
| 68 | Ameirin Pavlenov | 1.03 | 2012 | |
| 68 | Geremi Gonzalez | 1.03 | 2007 | |
| 68 | Douglas Fletcher | 1.03 | 2002 | |
| 68 | Todd Coffey | 1.03 | 2009 | |
| 68 | Justin Thompson | 1.03 | 2016 | |
| 68 | Victor Dunlap | 1.03 | 2021 | |
| 68 | Jermaine Perkins | 1.03 | 2015 | |
| 68 | Mike King# | 1.03 | 2030 | |
| 68 | Craig Breslow | 1.03 | 2009 | |
| 68 | Osvaldo Fernandez | 1.03 | 1996 | |
| 80 | Bradley McGuire | 1.04 | 2019 | |
| 80 | Ryan Jensen | 1.04 | 2007 | |
| 80 | Arthur Alston# | 1.04 | 2024 | |
| 80 | Joaquin Benoit | 1.04 | 2007 | |
| 80 | Veríssimo Hervedeiro | 1.04 | 2015 | |
| 80 | Waldo Brenton | 1.04 | 2004 | |
| 80 | Dusty Bowden# | 1.04 | 2030 | |
| 80 | Jorge Sosa | 1.04 | 2006 | |
| 80 | Russ Ortiz | 1.04 | 1998 | |
| 80 | Byron Guffin | 1.04 | 2012 | |
| 80 | Kyle Lohse | 1.04 | 2013 | |
| 80 | Mark Mulder | 1.04 | 2014 | |
| 80 | Luis Rivera | 1.04 | 2020 | |
| 80 | Nick Fisher | 1.04 | 2013 | |
| 94 | Jesús Pinamango | 1.05 | 2008 | |
| 94 | António Ortíz | 1.05 | 2001 | |
| 94 | Josh Fogg | 1.05 | 2011 | |
| 94 | António González | 1.05 | 2016 | |
| 94 | Veríssimo Hervedeiro | 1.05 | 2006 | |
| 94 | Scott Winchester | 1.05 | 2007 | |
| 94 | Steve Hayes | 1.05 | 2014 |
