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| Progressive Innings Pitched Leaderboard | |
| This table is a snapshot of the career, single-season, active, and yearly leaders at the end of each season. | |
| * - Indicates Hall of Fame
Bold - Indicates active player |
| Year | Career | IP | Single-Season | IP | Active | IP | Yearly | IP |
| 1952 | Robert Stadler | 318.0 | Robert Stadler | 318.0 | Robert Stadler | 318.0 | Robert Stadler | 318.0 |
| 1953 | Joshua Stephens | 625.3 | Joshua Stephens | 320.0 | Joshua Stephens | 625.3 | Joshua Stephens | 320.0 |
| 1954 | Michael Knepper | 953.7 | Michael Knepper | 328.3 | Michael Knepper | 953.7 | Michael Knepper | 328.3 |
| 1955 | Michael Knepper | 1246.3 | Michael Knepper | 328.3 | Michael Knepper | 1246.3 | Avelino Canabal | 314.0 |
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