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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | WHIP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Ian Kennedy | 0.81 | 2008 | |
| 1 | Bob Schultz | 0.81 | 2011 | |
| 1 | Leonardo Rodríguez | 0.81 | 2008 | |
| 1 | Robert Weaver | 0.81 | 2015 | |
| 5 | Michael Pineda | 0.84 | 2013 | |
| 5 | Aaron Goodman | 0.84 | 2004 | |
| 7 | Ken Cloude | 0.86 | 2004 | |
| 7 | Tony McKnight | 0.86 | 2006 | |
| 7 | Brad Halsey | 0.86 | 2004 | |
| 10 | Kyle Lynch | 0.88 | 2013 | |
| 10 | Zach Marshall | 0.88 | 2007 | |
| 12 | David Bush | 0.89 | 2004 | |
| 12 | Stanley High | 0.89 | 2016 | |
| 14 | Ken Cloude | 0.90 | 2008 | |
| 14 | Barry Cross | 0.90 | 2021 | |
| 14 | Aaron Goodman | 0.90 | 2003 | |
| 14 | Lawrence Baker | 0.90 | 2005 | |
| 18 | Dan McCourt# | 0.91 | 2021 | |
| 18 | Manny Limón | 0.91 | 2008 | |
| 18 | Ed Williams | 0.91 | 2014 | |
| 18 | Aaron Starr | 0.91 | 2008 | |
| 18 | Gerard Matthews | 0.91 | 2013 | |
| 23 | Chad Billingsley | 0.92 | 2007 | |
| 23 | Willie Nicholson | 0.92 | 2013 | |
| 23 | Aaron Nola | 0.92 | 2022 | |
| 26 | Daron Maddox | 0.93 | 2014 | |
| 26 | Juan Montoya | 0.93 | 2009 | |
| 26 | Xavier Fallon | 0.93 | 2012 | |
| 26 | Pablo Salazar | 0.93 | 2005 | |
| 26 | Eddie Morgan* | 0.93 | 2004 | |
| 26 | Ben Holmes | 0.93 | 2002 | |
| 32 | Jordan Zimmermann | 0.94 | 2012 | |
| 32 | Desi Newton | 0.94 | 2020 | |
| 32 | John Anderson | 0.94 | 2010 | |
| 32 | Glen Casey | 0.94 | 2010 | |
| 32 | Austin Myers | 0.94 | 2018 | |
| 32 | Mike Prudom | 0.94 | 2015 | |
| 32 | Dustin Sterling | 0.94 | 2023 | |
| 39 | David Bryant | 0.95 | 2002 | |
| 39 | Russell Bird | 0.95 | 2004 | |
| 39 | Jim Parque | 0.95 | 2008 | |
| 39 | Fernando Vázquez | 0.95 | 2021 | |
| 39 | Sidney Ponson | 0.95 | 2000 | |
| 44 | Trevor Foster | 0.96 | 2023 | |
| 44 | Norm Adams | 0.96 | 2014 | |
| 44 | Rob Patterson | 0.96 | 2002 | |
| 44 | Madison Bumgarner | 0.96 | 2013 | |
| 44 | Mathew Quick | 0.96 | 2005 | |
| 44 | José Espinoza# | 0.96 | 2028 | |
| 44 | Richard Sims | 0.96 | 2010 | |
| 51 | Francisco Macías# | 0.97 | 2025 | |
| 51 | José Hernández | 0.97 | 2003 | |
| 51 | Jack Roberts | 0.97 | 2014 | |
| 51 | John Anderson | 0.97 | 2011 | |
| 51 | Armando Álvarez | 0.97 | 2006 | |
| 51 | Cisco Ortega# | 0.97 | 2031 | |
| 51 | Louis Hamel | 0.97 | 2006 | |
| 51 | Adam Gilbert | 0.97 | 2020 | |
| 59 | Jorge Cuesta | 0.98 | 2002 | |
| 59 | Jason Johnson | 0.98 | 1999 | |
| 59 | Kevin Cleveland# | 0.98 | 2023 | |
| 59 | Alvin Bass | 0.98 | 2023 | |
| 59 | Luis Marino | 0.98 | 2004 | |
| 59 | Emílio Esparza | 0.98 | 2006 | |
| 59 | Jake Jones | 0.98 | 2022 | |
| 66 | Carlos Durán# | 0.99 | 2026 | |
| 66 | Dan Rasmussen | 0.99 | 2011 | |
| 66 | Gabriel Sterling# | 0.99 | 2023 | |
| 66 | Jordan Zimmermann | 0.99 | 2013 | |
| 66 | Rodrigo Ayala# | 0.99 | 2031 | |
| 66 | Jonathan O'Halloran# | 0.99 | 2023 | |
| 66 | Russell Bird | 0.99 | 2003 | |
| 66 | Diego Madraso | 0.99 | 2004 | |
| 66 | Kyle Lynch | 0.99 | 2012 | |
| 75 | Russell Bird | 1.00 | 2002 | |
| 75 | Bernardo Silva | 1.00 | 2022 | |
| 75 | Kenneth Henderson | 1.00 | 2002 | |
| 75 | Ramiro Lozano# | 1.00 | 2023 | |
| 75 | Tim Lincecum | 1.00 | 2008 | |
| 75 | Archie Anderson | 1.00 | 2008 | |
| 75 | Fred Hawkins | 1.00 | 2018 | |
| 75 | Eric Budo# | 1.00 | 2022 | |
| 75 | Kyle Lynch | 1.00 | 2011 | |
| 84 | Augusto Martínez | 1.01 | 2013 | |
| 84 | Nelson Lewis# | 1.01 | 2021 | |
| 84 | Jim Hines# | 1.01 | 2021 | |
| 84 | Paul Williams | 1.01 | 2011 | |
| 84 | Francisco Valéncia | 1.01 | 2014 | |
| 84 | Jason Willis | 1.01 | 2011 | |
| 84 | Shane Bieber# | 1.01 | 2023 | |
| 91 | Bob Foreman | 1.02 | 2010 | |
| 91 | Henry Gill# | 1.02 | 2022 | |
| 91 | Chris C George | 1.02 | 2003 | |
| 91 | Nick Fisher | 1.02 | 2011 | |
| 91 | Bob Muirhead | 1.02 | 2018 | |
| 91 | Chad Durbin | 1.02 | 2007 | |
| 91 | Mark King | 1.02 | 2018 | |
| 91 | Paul Williams | 1.02 | 2022 | |
| 91 | Pancho Rivera | 1.02 | 2005 | |
| 91 | Joe Townsend | 1.02 | 2018 |
