| Most Innings Pitched without Starting a Game | |||||
|---|---|---|---|---|---|
| Player | Team | Year | Age | IP | G |
| Jeremy Lutz | SF | 2085 | 29 | 208.1 | 32 |
| Jerry Patterson | OMA | 2028 | 24 | 173.0 | 85 |
| Pat O'Bryan | HH | 2022 | 24 | 170.0 | 75 |
| Dan Mendelson | Bos | 2022 | 22 | 164.0 | 75 |
| Jerry Patterson | OMA | 2027 | 23 | 161.0 | 77 |
| Jon Ortiz | CG | 2084 | 25 | 160.0 | 105 |
| Cisco Vázquez | Bos | 2033 | 27 | 155.2 | 82 |
| Robert Shone | CG | 2027 | 30 | 154.1 | 84 |
| Al Bowen | AT | 2084 | 33 | 153.2 | 76 |
| Jon Ortiz | CG | 2085 | 26 | 153.1 | 102 |
| Manuel Monterroza | Bos | 2061 | 27 | 150.2 | 87 |
| Nate Dyer | BH | 2024 | 28 | 150.2 | 77 |
| Vic Lee | AUS | 2078 | 30 | 150.2 | 87 |
| Willie Fraser | PR | 2031 | 24 | 149.2 | 76 |
| Al McAllister | OMA | 2033 | 24 | 148.0 | 73 |
| Glen Castillo | AT | 2080 | 34 | 147.2 | 86 |
| Carlos Vargo | SB | 2015 | 23 | 146.1 | 78 |
| Robby Newton | BOS | 2083 | 28 | 146.1 | 91 |
| Glen Castillo | AT | 2081 | 35 | 145.2 | 88 |
| Mario Hernández | AT | 2018 | 24 | 143.0 | 79 |