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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Gordon Knopp# | .4481 | 2032-2042 | |
| 2 | Ieyoshi Ishikawa | .3924 | 2015-2027 | |
| 3 | Rubén Jiménez | .3777 | 2024-2034 | |
| 4 | Jeff Patterson | .3705 | 2007-2015 | |
| 5 | Orlando Germán | .3666 | 2007-2019 | |
| 6 | Jay White | .3653 | 2014-2024 | |
| 7 | Pat Watson# | .3641 | 2024-2042 | |
| 8 | Edgar Valentín | .3577 | 2013-2022 | |
| 9 | Ángel Silva# | .3551 | 2035-2042 | |
| 10 | Pedro Flores# | .3527 | 2024-2041 | |
| 11 | En-guo Guao | .3476 | 2010-2022 | |
| 12 | Michaël Demers | .3473 | 2017-2023 | |
| 13 | John Gustafson | .3462 | 2007-2016 | |
| 14 | John Martin | .3438 | 2016-2031 | |
| 15 | Carlos Ryan | .3424 | 2022-2035 | |
| 16 | Donald Allen | .3420 | 2024-2034 | |
| 17 | Jason Box# | .3367 | 2026-2039 | |
| 18 | Arthur Collins | .3366 | 2015-2023 | |
| 19 | Alfredo Guzmán# | .3272 | 2034-2042 | |
| 20 | Pedro Bermúdez# | .3255 | 2034-2042 | |
| 21 | Miguel Yánez | .3247 | 2016-2033 | |
| 22 | Guang Liu# | .3242 | 2030-2042 | |
| 23 | Jeffrey Wolfe | .3214 | 2016-2025 | |
| 24 | Juan Chavarría# | .3210 | 2035-2042 | |
| 25 | António Chávez | .3208 | 2011-2020 | |
| 26 | Dan Jamison | .3206 | 2009-2018 | |
| 27 | Javier Cruz | .3168 | 2015-2028 | |
| 28 | Alberto Delgado | .3162 | 2007-2015 | |
| 29 | Tomás Flores | .3148 | 2023-2039 | |
| 30 | Mathew Ferrell | .3122 | 2017-2032 | |
| 31 | Shou-chien Jung | .3111 | 2011-2016 | |
| 32 | Pablo Cabrera | .3110 | 2014-2028 | |
| 33 | Dean Walden | .3108 | 2023-2035 | |
| 34 | Steve Boyer | .3107 | 2028-2041 | |
| 35 | Orlando Garza# | .3103 | 2033-2040 | |
| 36 | Mike Hale | .3099 | 2018-2035 | |
| 37 | Jack Miller | .3069 | 2007-2015 | |
| 38 | Maxime Plamondon | .3062 | 2027-2040 | |
| 39 | Okitsugu Shimizu | .3038 | 2024-2031 | |
| 40 | Dan Bean# | .3033 | 2034-2042 | |
| 41 | Luis Cervantes | .3023 | 2025-2037 | |
| 42 | Wally Glasser | .3019 | 2030-2040 | |
| 43 | Bob Arnold | .3017 | 2015-2024 | |
| 44 | José Camacho | .3014 | 2011-2019 | |
| 45 | José Rivera# | .3009 | 2034-2042 | |
| 46 | Carlos Marino | .2991 | 2026-2038 | |
| 47 | Cal Morrissey | .2985 | 2028-2039 | |
| 48 | Francisco Rodríguez# | .2947 | 2027-2042 | |
| 49 | Dale Griffith | .2877 | 2016-2026 | |
| 50 | Orlando Reyes | .2876 | 2022-2030 | |
| 51 | Harry Hutchins | .2870 | 2024-2034 | |
| 52 | Raúl Ortega# | .2729 | 2025-2041 | |
| 53 | Roberto García | .2652 | 2024-2038 | |
| 54 | Peter Monnington# | .2597 | 2032-2041 |
