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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Yukio Kotani# | .3482 | 1952-1959 | |
| 2 | Alfonso Salas# | .3451 | 1954-1959 | |
| 3 | Valentin Covi# | .3395 | 1952-1957 | |
| 4 | Jamie McIntyre# | .3361 | 1953-1959 | |
| 5 | Clay Austen# | .3313 | 1957-1959 | |
| 6 | Romain Larue# | .3291 | 1954-1959 | |
| 7 | Jayden Lindsey | .3153 | 1952-1956 | |
| 8 | Tae-geun Kang# | .3072 | 1954-1957 | |
| 9 | Cipriano Furio# | .3068 | 1954-1959 | |
| 10 | Alain Viard# | .3031 | 1952-1959 | |
| 11 | You-yi Zhào# | .2998 | 1952-1959 | |
| 12 | Miguel Medellin | .2772 | 1952-1955 |
