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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Steve Frend* | .460 | 2012-2027 | |
| 2 | Fernando Bautista | .400 | 2017-2025 | |
| 3 | Tom Klein | .398 | 2012-2021 | |
| 4 | Kata Nishikawa | .393 | 2019-2031 | |
| 5 | Tom Lampley# | .392 | 2022-2034 | |
| 6 | Steve McGowan | .390 | 2019-2032 | |
| 7 | Joe Leftwich | .389 | 2012-2021 | |
| 8 | Seitaro Maruyama | .386 | 2017-2027 | |
| 9 | Joe Young | .378 | 2021-2032 | |
| 10 | Masaki Baba | .376 | 2015-2030 | |
| 10 | Mike Bergeron* | .376 | 2012-2026 | |
| 12 | Tom Becker* | .375 | 2012-2023 | |
| 13 | Pat Bancroft | .372 | 2015-2028 | |
| 14 | Daniel López | .369 | 2020-2031 | |
| 15 | Hui Pan# | .368 | 2022-2034 | |
| 16 | Li-chi Au | .366 | 2016-2029 | |
| 17 | Tony Oglethorpe | .365 | 2017-2026 | |
| 18 | Oscar Hunt# | .359 | 2017-2034 | |
| 19 | Fernando Murillo# | .358 | 2019-2034 | |
| 20 | Hubert Morris | .356 | 2016-2025 | |
| 20 | Gilberto Jiménez# | .356 | 2024-2034 | |
| 22 | Frank Coleman | .349 | 2019-2028 | |
| 23 | Jejomar Butardo# | .347 | 2024-2034 | |
| 23 | Gulloo Sandip | .347 | 2019-2031 | |
| 25 | Alvin Carter | .341 | 2020-2030 | |
| 26 | Pablo López# | .337 | 2018-2033 | |
| 27 | Stan Cheslin | .336 | 2012-2028 | |
| 28 | David Picot | .335 | 2018-2029 | |
| 29 | Pat Pittman# | .332 | 2023-2034 | |
| 30 | Akio Ishii# | .331 | 2027-2034 | |
| 31 | Todd McCarthy# | .321 | 2021-2034 |
