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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Robbie Helgert# | .4232 | 1958 | |
| 2 | Jamie McIntyre# | .3869 | 1958 | |
| 3 | Yukio Kotani# | .3785 | 1954 | |
| 4 | Karl Gallizio# | .3772 | 1952 | |
| 5 | Jamie McIntyre# | .3688 | 1953 | |
| 6 | Valentin Covi# | .3687 | 1953 | |
| 7 | Yukio Kotani# | .3652 | 1952 | |
| 8 | Alfonso Salas# | .3625 | 1954 | |
| 9 | Yukio Kotani# | .3611 | 1956 | |
| 10 | Clay Austen# | .3602 | 1957 | |
| 11 | Romain Larue# | .3571 | 1957 | |
| 12 | Yukio Kotani# | .3542 | 1955 | |
| 13 | Valentin Covi# | .3504 | 1955 | |
| 14 | Alfonso Salas# | .3469 | 1958 | |
| 15 | Yukio Kotani# | .3440 | 1953 | |
| 16 | Jamie McIntyre# | .3402 | 1954 | |
| 17 | Jayden Lindsey | .3358 | 1955 | |
| 18 | Jamie McIntyre# | .3325 | 1957 | |
| 19 | Tae-geun Kang# | .3291 | 1956 | |
| 20 | Cipriano Furio# | .3281 | 1956 | |
| 21 | Alain Viard# | .3261 | 1955 | |
| 22 | Alfonso Salas# | .3248 | 1957 | |
| 23 | Romain Larue# | .3247 | 1958 | |
| 24 | Yukio Kotani# | .3238 | 1957 | |
| 25 | You-yi Zhào# | .3213 | 1953 | |
| 26 | Alain Viard# | .3191 | 1958 | |
| 27 | Yukio Kotani# | .3190 | 1958 | |
| 28 | Jamie McIntyre# | .3179 | 1955 | |
| 29 | Alain Viard# | .3145 | 1953 | |
| 30 | Romain Larue# | .3132 | 1955 | |
| 31 | Alain Viard# | .3108 | 1956 | |
| 32 | Romain Larue# | .3072 | 1956 | |
| 33 | Tae-geun Kang# | .3047 | 1955 | |
| 34 | Tae-geun Kang# | .3046 | 1954 | |
| 35 | Alain Viard# | .3017 | 1952 | |
| 36 | Noah McMillan# | .3014 | 1953 | |
| 36 | Armando Llanes | .3014 | 1953 | |
| 38 | Stephen Yeo# | .3010 | 1952 | |
| 39 | Jesus Gelacio# | .3007 | 1955 | |
| 40 | Alain Viard# | .2970 | 1957 | |
| 41 | Jamie McIntyre# | .2968 | 1956 | |
| 42 | Raul Camacho# | .2963 | 1958 | |
| 43 | Cipriano Furio# | .2949 | 1957 | |
| 44 | Jayden Lindsey | .2948 | 1956 | |
| 45 | Valentin Covi# | .2925 | 1954 | |
| 46 | Cipriano Furio# | .2920 | 1958 | |
| 47 | Tae-geun Kang# | .2918 | 1957 | |
| 48 | Jerry Maher# | .2872 | 1952 | |
| 49 | David Morrison# | .2857 | 1954 | |
| 50 | Willie Martinez# | .2814 | 1958 | |
| 51 | You-yi Zhào# | .2768 | 1952 | |
| 52 | Miguel Medellin | .2677 | 1952 | |
| 53 | Alain Viard# | .2633 | 1954 | |
| 54 | Miguel Medellin | .2555 | 1953 |
