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| Career Post-Season Strikeouts per 9IP Leaderboard | |
| * - Indicates Hall of Fame Bold - Indicates active player |
| Rank | Player | Strikeouts per 9IP | IP | Years | Single Season Leaderboard |
| 1. | James Burke | 4.50 | 28.0 | 1884-1884 | |
| Bob Black | 4.50 | 26.0 | 1884-1884 | ||
| 3. | Sam Weaver | 3.55 | 33.0 | 1884-1884 | |
| 4. | Guy Hecker | 3.25 | 36.0 | 1884-1884 | |
| 5. | Fred Goldsmith | 2.33 | 27.0 | 1884-1884 | |
| Lady Baldwin | 2.33 | 27.0 | 1884-1884 |
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