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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Alaric Hamann# | .5227 | 1973-1988 | |
| 2 | Bartolo Rosado | .5183 | 1967-1984 | |
| 3 | Tristan Mallenbrandt | .5115 | 1958-1964 | |
| 4 | Ken Manning | .4771 | 1964-1967 | |
| 5 | Donu Muruthi | .4647 | 1973-1988 | |
| 6 | Alexei Gaidamakin | .4593 | 1967-1977 | |
| 7 | Ludvik Ekroth | .4570 | 1970-1981 | |
| 8 | Kahil Ya'qub | .4491 | 1977-1988 | |
| 9 | Tong Qing | .4464 | 1958-1973 | |
| 10 | Jack MacKail | .4398 | 1961-1970 | |
| 11 | Gebre-Tsadik Kwada | .4392 | 1973-1981 | |
| 12 | Joshua MacIlvain | .4365 | 1973-1977 | |
| 12 | Eddie Hebditch# | .4365 | 1984-1988 | |
| 14 | Francisco Reyes | .4357 | 1958-1967 | |
| 15 | Vincent Johnson* | .4353 | 1970-1981 | |
| 16 | Yasunobu Kokura | .4337 | 1961-1970 | |
| 17 | Javier Negrete | .4331 | 1964-1973 | |
| 18 | Kyoji Ikeda | .4296 | 1961-1970 | |
| 18 | Ian Bogliolo | .4296 | 1961-1973 | |
| 20 | Mitchell Brisley | .4274 | 1958-1967 | |
| 21 | Jesús Acuña# | .4272 | 1981-1988 | |
| 22 | Pat Docking | .4225 | 1961-1967 | |
| 23 | Gareth Gyte# | .4211 | 1984-1988 | |
| 24 | Xavier Martínez | .4186 | 1961-1970 | |
| 25 | Rossano Andretta | .4185 | 1958-1970 | |
| 26 | Vito Dekker | .4167 | 1977-1981 | |
| 27 | Conchúr Labourer | .4103 | 1961-1977 | |
| 28 | Matthew Iddon | .4100 | 1964-1977 | |
| 29 | Pedro Andrade | .4024 | 1958-1977 | |
| 30 | Andrew Scobie | .4023 | 1967-1977 | |
| 31 | Safiy Hakim# | .3923 | 1977-1984 | |
| 32 | Seamus Murcutt# | .3881 | 1973-1988 | |
| 33 | Gabriel Michaud | .3858 | 1958-1964 | |
| 34 | Alejandro Palma | .3840 | 1958-1964 | |
| 35 | Dave Mallandain | .3800 | 1958-1967 | |
| 36 | Diego Peña | .3758 | 1970-1981 | |
| 37 | Ramón Flores | .3740 | 1970-1973 | |
| 38 | Jen-djieh Kwan | .3669 | 1958-1970 | |
| 39 | Jorge Rincón | .3668 | 1964-1970 | |
| 40 | Matt Wood | .3653 | 1958-1970 | |
| 41 | Abdul-Salam Noori# | .3651 | 1984-1988 | |
| 42 | Lee Fenton | .3636 | 1973-1984 | |
| 43 | Ángel Viña | .3543 | 1961-1970 | |
| 44 | Ramiro Gaitán | .3509 | 1958-1967 | |
| 45 | Jifar Zuber | .3422 | 1961-1967 | |
| 46 | Sloan Ryburn | .3399 | 1958-1970 | |
| 46 | Pablo Maes | .3399 | 1977-1988 | |
| 48 | Veit Widhoezl | .3353 | 1961-1977 | |
| 49 | Harley Hebblethwaite | .3333 | 1973-1981 | |
| 50 | Mathieu Rolland | .3289 | 1961-1970 | |
| 51 | Konosuke Okada | .3288 | 1973-1981 | |
| 52 | Kane Warwick | .3284 | 1961-1964 | |
| 53 | Leo Vigar | .3202 | 1958-1964 | |
| 54 | Gonzalo Ramos | .3154 | 1977-1984 | |
| 55 | Carl Matena# | .3000 | 1981-1988 | |
| 56 | Bernard Demay | .2986 | 1970-1973 | |
| 57 | Ommar bin Imran | .2937 | 1977-1988 | |
| 58 | Kawsen Osbert | .2742 | 1964-1973 | |
| 59 | Reima Reima# | .2500 | 1981-1988 |
