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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Anatolii Sajnev# | .4848 | 1957 | |
| 2 | Anatolii Sajnev# | .4688 | 1955 | |
| 3 | Dositej Pesa# | .4630 | 1955 | |
| 4 | Gregor Kramer# | .4412 | 1957 | |
| 5 | Alex Martinez# | .4286 | 1957 | |
| 6 | Ethan Chennells# | .4054 | 1957 | |
| 7 | Francisco Villezcas# | .3902 | 1957 | |
| 8 | Kanzaburo Tsuchida# | .3824 | 1955 | |
| 9 | Mei-shan Xú# | .3714 | 1955 | |
| 10 | Felix Feofilov# | .3667 | 1955 | |
| 11 | Gannon McAskill# | .3448 | 1955 | |
| 12 | Georges Cariou# | .3125 | 1957 | |
| 13 | Ivan Jimenez# | .3030 | 1955 | |
| 14 | Paxton Boone# | .2973 | 1957 | |
| 15 | Goris Visser# | .2857 | 1957 | |
| 16 | Franklin Wouters# | .2812 | 1955 | |
| 17 | Bora Obradovic# | .2759 | 1957 | |
| 18 | Jake Mahar# | .2632 | 1957 | |
| 19 | Alberto Sanchez# | .2619 | 1955 | |
| 20 | Mei-shan Xú# | .2581 | 1957 | |
| 21 | Pabiyan Azariev# | .2500 | 1957 | |
| 21 | Takeshi Hirose# | .2500 | 1957 | |
| 21 | Chia-liang Da# | .2500 | 1957 | |
| 24 | Brad Beitz# | .2414 | 1955 | |
| 24 | Luis Garcia# | .2414 | 1957 | |
| 26 | Georges Cariou# | .2400 | 1955 | |
| 27 | Ethan Chennells# | .2326 | 1955 | |
| 28 | Heller Koehler# | .2308 | 1955 | |
| 29 | Ivan Jimenez# | .2188 | 1957 | |
| 30 | Francisco Villezcas# | .2143 | 1955 | |
| 31 | Yeow-whye Eng# | .1667 | 1955 | |
| 32 | Alex Martinez# | .1600 | 1955 |
