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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Diego Bonilla# | .3811 | 2023 | |
| 2 | Harrison Jones# | .3666 | 2020 | |
| 3 | Tomás Mejía# | .3620 | 2022 | |
| 4 | Filip Huigen# | .3588 | 2024 | |
| 5 | Carroll Martin# | .3437 | 2021 | |
| 6 | Shawn McCormack# | .3433 | 2021 | |
| 7 | Bill Allen# | .3415 | 2023 | |
| 8 | Colin Worthington# | .3388 | 2025 | |
| 9 | Alberto Rodríguez# | .3367 | 2024 | |
| 10 | Enrique Vásquez# | .3311 | 2025 | |
| 11 | Sancho Romero# | .3302 | 2020 | |
| 12 | Logan Namajunas# | .3287 | 2024 | |
| 13 | Randy Schlosser# | .3239 | 2022 | |
| 14 | Daniel Ybarra | .3234 | 2022 | |
| 15 | Dennis Barraclough# | .3218 | 2025 | |
| 16 | Luis Gutiérrez# | .3168 | 2021 | |
| 17 | Jorge Maestas | .3155 | 2020 | |
| 18 | José Hernández# | .3123 | 2022 | |
| 19 | Jing-sheng Joo# | .3072 | 2025 | |
| 20 | Darrell Terwey# | .3035 | 2020 | |
| 21 | Miguel Montoya# | .3027 | 2025 | |
| 22 | Jorge Reyes# | .3026 | 2021 | |
| 23 | Will Boyle# | .3003 | 2023 | |
| 24 | Michael Landry# | .2957 | 2020 | |
| 25 | Pedro Pérez# | .2943 | 2020 | |
| 26 | Trent Burch# | .2932 | 2020 | |
| 27 | Carlos Trujillo# | .2929 | 2020 | |
| 28 | Shohei Kiyomizu# | .2897 | 2022 | |
| 29 | Bobby Butterfield# | .2848 | 2024 | |
| 30 | Diego Bonilla# | .2776 | 2022 | |
| 31 | Bert Cook# | .2766 | 2024 | |
| 32 | Jesús Vargas# | .2759 | 2025 | |
| 33 | Alberto Rodríguez# | .2742 | 2022 | |
| 34 | Juan Ledezma# | .2629 | 2025 | |
| 35 | Aaron Taylor# | .2611 | 2023 | |
| 36 | Trent Burch# | .2579 | 2021 | |
| 37 | Aaron Taylor# | .2462 | 2022 | |
| 38 | Dave Yates# | .2455 | 2025 |
