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| Career Post-Season OSLG Leaderboard | |
| * - Indicates Hall of Fame Bold - Indicates active player |
| Rank | Player | OSLG | IP | Years | Single Season Leaderboard |
| 1. | Harry Robin | .2660 | 58.3 | 1953-1954 | |
| 2. | David Caviness | .2885 | 29.7 | 1953-1954 | |
| 3. | Fabian Cordova | .3394 | 78.3 | 1952-1955 | |
| 4. | Jason Williams | .3453 | 63.7 | 1952-1953 | |
| 5. | Michael Sturges | .3641 | 54.0 | 1952-1954 | |
| 6. | Donald Phillips | .3654 | 73.0 | 1954-1955 | |
| 7. | Ruben Ibarra | .3763 | 25.0 | 1955-1955 | |
| 8. | Winfred Converse | .3908 | 23.0 | 1952-1954 | |
| 9. | Justin Paige | .3978 | 25.3 | 1953-1954 | |
| 10. | Antonio Padula | .3986 | 38.3 | 1952-1953 | |
| 11. | Clyde Pearson | .4021 | 26.0 | 1955-1955 | |
| 12. | Cameron Hagans | .4058 | 35.0 | 1953-1953 | |
| 13. | Francis Wachter | .4200 | 27.0 | 1952-1952 | |
| 14. | Dennis Christian | .4205 | 23.7 | 1953-1953 | |
| 15. | Carl Nicosia | .4529 | 84.3 | 1952-1955 | |
| 16. | Pat Ogren | .4878 | 21.3 | 1953-1953 | |
| 17. | Dante Ruiz | .5556 | 55.7 | 1952-1954 | |
| 18. | Tony Delossantos | .5727 | 26.7 | 1952-1954 |
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