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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | WHIP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Ted Spears | 0.916 | 2010 | |
| 2 | Curt Lucas | 0.942 | 2015 | |
| 3 | Rafael Santillanenz | 0.948 | 2014 | |
| 4 | David Miller | 0.974 | 2010 | |
| 5 | Ze-min Tong | 0.997 | 2012 | |
| 6 | Koshiro Shibutani | 1.010 | 2010 | |
| 7 | Kelly Haynes | 1.044 | 2009 | |
| 8 | Tso-lin Kuo | 1.054 | 2009 | |
| 9 | King Clark | 1.060 | 2012 | |
| 10 | John Stricker | 1.090 | 2011 | |
| 11 | José Castro | 1.091 | 2017 | |
| 12 | Donald Brewer | 1.101 | 2015 | |
| 13 | Nick Reed | 1.102 | 2011 | |
| 14 | Randy Stagg | 1.112 | 2013 | |
| 15 | Reginald Stroud | 1.113 | 2011 | |
| 16 | Ted Spears | 1.115 | 2011 | |
| 17 | Eduardo Martínez | 1.117 | 2018 | |
| 18 | Koshiro Shibutani | 1.127 | 2011 | |
| 19 | Scott Dyer | 1.134 | 2019 | |
| 20 | Alfonso Medro | 1.136 | 2011 | |
| 21 | Troy Hensley | 1.138 | 2017 | |
| 22 | Troy Hensley | 1.144 | 2014 | |
| 23 | Ron Eager | 1.151 | 2009 | |
| 24 | Mario García | 1.152 | 2008 | |
| 25 | Tim Harmon | 1.157 | 2022 | |
| 26 | Ben Moody | 1.159 | 2022 | |
| 27 | Iván Romero# | 1.160 | 2037 | |
| 28 | Troy Hensley | 1.162 | 2012 | |
| 29 | Kiyomitsu Fujii | 1.163 | 2021 | |
| 30 | Alfonso Gutiérrez | 1.164 | 2012 | |
| 31 | Mike Belcher | 1.167 | 2017 | |
| 32 | Randy Griffin | 1.169 | 2007 | |
| 33 | Dustin Velásquez# | 1.172 | 2033 | |
| 34 | Jorge Crus | 1.177 | 2013 | |
| 35 | Alberto Márquez | 1.178 | 2028 | |
| 35 | Marty Twombly | 1.178 | 2014 | |
| 37 | Gerald Williams | 1.185 | 2014 | |
| 37 | Glen Jones | 1.185 | 2018 | |
| 37 | Troy Hensley | 1.185 | 2013 | |
| 40 | Scott Dyer | 1.189 | 2014 | |
| 41 | Robby Black | 1.190 | 2009 | |
| 42 | Yasuyuki Ishii | 1.193 | 2023 | |
| 43 | Robinson Rodríguez | 1.195 | 2011 | |
| 44 | Bartolo Romo | 1.196 | 2018 | |
| 45 | Jung-keun Yi | 1.198 | 2013 | |
| 46 | Artie Skinner | 1.201 | 2016 | |
| 47 | Cisco Cota | 1.202 | 2008 | |
| 48 | Alberto Márquez | 1.203 | 2027 | |
| 49 | Norberto Méndez | 1.204 | 2025 | |
| 50 | Myron Hawkins | 1.211 | 2008 | |
| 51 | Derrick Harrison | 1.213 | 2010 | |
| 51 | Kevin Bader | 1.213 | 2027 | |
| 53 | Paul Niblett | 1.216 | 2012 | |
| 53 | Sloan Otto | 1.216 | 2018 | |
| 55 | Juan Barrera | 1.219 | 2028 | |
| 55 | Aaron Green# | 1.219 | 2028 | |
| 57 | Bob Cunningham | 1.221 | 2036 | |
| 57 | António Galindo | 1.221 | 2026 | |
| 59 | Jason Jensen | 1.223 | 2007 | |
| 60 | Gerald Williams | 1.224 | 2009 | |
| 61 | Orlando Maldonado | 1.228 | 2013 | |
| 61 | Jim Hendon | 1.228 | 2023 | |
| 61 | Octávio Miranda | 1.228 | 2007 | |
| 61 | Millard Curtis# | 1.228 | 2027 | |
| 65 | Jim Sheppard | 1.230 | 2027 | |
| 66 | Scott Conklin | 1.231 | 2019 | |
| 67 | Sugimoto Kuhabara | 1.232 | 2010 | |
| 68 | Jim Hendon | 1.236 | 2021 | |
| 69 | Derek Simpson | 1.238 | 2032 | |
| 69 | Rod Adams | 1.238 | 2021 | |
| 71 | Mario Chávez | 1.241 | 2029 | |
| 72 | Wendell O'Rorke | 1.242 | 2017 | |
| 73 | Ze-dong Quian | 1.243 | 2018 | |
| 73 | Marcos Pineda | 1.243 | 2011 | |
| 75 | Gabriel Morales | 1.244 | 2016 | |
| 76 | Clint John | 1.246 | 2026 | |
| 77 | Tak-hing Fei | 1.249 | 2011 | |
| 78 | Scott Conklin | 1.250 | 2018 | |
| 79 | Jing-xiang Fa | 1.253 | 2029 | |
| 79 | José Martínez# | 1.253 | 2022 | |
| 81 | Arturo Ramírez | 1.254 | 2011 | |
| 81 | Kisho Kichida | 1.254 | 2022 | |
| 83 | Raúl Castillo | 1.256 | 2011 | |
| 84 | Luis Pregaso | 1.257 | 2009 | |
| 84 | Christopher Pegrum | 1.257 | 2011 | |
| 86 | Javier Moreno# | 1.258 | 2033 | |
| 86 | Joe MacAslan# | 1.258 | 2038 | |
| 88 | César Martínez | 1.259 | 2015 | |
| 89 | Jun Kawashima | 1.260 | 2027 | |
| 89 | Adrián León | 1.260 | 2023 | |
| 91 | Takahiro Sakei | 1.261 | 2025 | |
| 91 | Octávio Miranda | 1.261 | 2011 | |
| 93 | Jorge Santana | 1.264 | 2009 | |
| 93 | Phil Davis | 1.264 | 2031 | |
| 95 | Horace Jacobs# | 1.267 | 2036 | |
| 95 | Teruo Sato | 1.267 | 2023 | |
| 97 | Yeow-whye Liang | 1.274 | 2012 | |
| 98 | Gerald Norman | 1.276 | 2008 | |
| 99 | Rafael Santillanenz | 1.277 | 2017 | |
| 99 | Enrique Valdés | 1.277 | 2026 |
