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| Career Post-Season Walks per 9IP Leaderboard | |
| * - Indicates Hall of Fame Bold - Indicates active player |
| Rank | Player | Walks per 9IP | IP | Years | Single Season Leaderboard |
| 1. | Casey Stutzman | 1.04 | 34.7 | 1947-1950 | |
| 2. | Stan Lugo | 1.12 | 48.3 | 1947-1949 | |
| 3. | James Hanselman | 1.38 | 85.0 | 1947-1950 | |
| 4. | Michael Edwards | 1.40 | 25.7 | 1947-1949 | |
| 5. | Edwin Dummer | 1.44 | 25.0 | 1947-1949 | |
| 6. | Lavern Bessler | 1.73 | 57.3 | 1947-1950 | |
| 7. | James Wells | 2.51 | 32.3 | 1947-1949 | |
| 8. | Chet Seiler | 2.54 | 46.0 | 1947-1950 | |
| 9. | Lucien Pillar | 2.74 | 82.0 | 1947-1950 | |
| 10. | James Nickerson | 3.12 | 26.0 | 1948-1949 | |
| 11. | Dwight Roesch | 3.36 | 67.0 | 1947-1949 | |
| 12. | Joshua Cook | 3.41 | 34.3 | 1947-1950 | |
| 13. | William Noriega | 3.58 | 27.7 | 1947-1950 | |
| 14. | Eric Brown | 3.67 | 27.0 | 1947-1948 | |
| 15. | Gerald Sarno | 4.04 | 49.0 | 1948-1949 | |
| 16. | Roger Kirwan | 4.19 | 62.3 | 1947-1950 | |
| 17. | Corey Hill | 4.20 | 45.0 | 1947-1950 |
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