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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | John Hukill* | .408 | 2008-2025 | |
| 2 | Callum Gaynon | .394 | 2017-2027 | |
| 3 | Timothy Mendiola | .386 | 2012-2026 | |
| 4 | Fred Smith | .370 | 2009-2020 | |
| 5 | Roy Nickerson# | .360 | 2026-2035 | |
| 6 | Ricky Peppers* | .356 | 2007-2021 | |
| 7 | Rick Bryant | .355 | 2020-2029 | |
| 8 | Javier Chalén# | .354 | 2025-2035 | |
| 8 | Richard Bender | .354 | 2014-2031 | |
| 10 | Dewey Wilson# | .348 | 2023-2035 | |
| 11 | Jeff Wardlaw | .345 | 2011-2025 | |
| 12 | William Midkiff | .343 | 2014-2024 | |
| 13 | Santiago Pérez | .337 | 2020-2030 | |
| 14 | Jonathan Locker | .332 | 2027-2033 | |
| 15 | Royal Wilson | .331 | 2011-2022 | |
| 16 | Ramón Nieto# | .319 | 2030-2035 | |
| 17 | Miguel Martínez | .317 | 2021-2027 | |
| 18 | Dmitr Radzilowski# | .316 | 2028-2035 | |
| 18 | Pedro Rivera | .316 | 2024-2033 | |
| 20 | Martín Costa# | .294 | 2027-2035 | |
| 21 | Millard Peterson# | .290 | 2030-2035 |
