| Starter | Tm | Tier | Game |
|---|---|---|---|
| Billy Pierce | CHA | 6.45 | 195809011_CLE_CHA |
| Warren Spahn | ATL | 3.86 | 195809030_ATL_PHI |
| Jack Harshman | BAL | 3.46 | 195809011_BAL_MIN |
| Frank Lary | DET | 2.12 | 195809030_CHA_DET |
| Johnny Antonelli | SFN | 1.7 | 195809012_LAN_SFN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dick Drott | CHN | -5.46 | 195809030_SLN_CHN |
| Jack Urban | OAK | -5.26 | 195809012_DET_OAK |
| Ruben Gomez | SFN | -2.58 | 195809030_SFN_LAN |
| Seth Morehead | PHI | -2.43 | 195809030_ATL_PHI |
| Dave Sisler | BOS | -1.67 | 195809020_BOS_NYA |
Based on accumulated WAA for this season up to 1958-09-03.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 8.39 | Whitey Ford | 201.3 | NYA |
| +007+ | 6.05 | Billy Pierce | 207.7 | CHA |
| +008+ | 5.91 | Bob Turley | 218 | NYA |
| +011+ | 5.57 | Jack Harshman | 201 | BAL |
| +017+ | 5.24 | Sam Jones | 212.3 | SLN |
| +018+ | 5.06 | Billy O'Dell | 197.7 | BAL |
| +021+ | 4.72 | Warren Spahn | 254 | ATL |
| +022+ | 4.33 | Frank Lary | 215 | DET |
| +023+ | 4.32 | Lew Burdette | 231 | ATL |
| +025+ | 4.26 | Red Witt | 87.3 | PIT |
| +026+ | 4.01 | Dick Donovan | 210.7 | CHA |
| +027+ | 3.99 | Stu Miller | 140.3 | SFN |
| +029+ | 3.83 | Joey Jay | 95.7 | ATL |
| +030+ | 3.81 | Robin Roberts | 229.3 | PHI |
| +031+ | 3.69 | Carl Willey | 112.7 | ATL |
| +038+ | 3.34 | Johnny Antonelli | 215 | SFN |
| +039+ | 3.19 | Hoyt Wilhelm | 100.7 | TOT |
| +040+ | 3.16 | Cal McLish | 186.7 | CLE |
| +041+ | 3.13 | Arnie Portocarrero | 178.7 | BAL |
| +042+ | 3.09 | Art Ditmar | 124.3 | NYA |
| +059+ | 2.28 | Camilo Pascual | 151.3 | MIN |
| +063+ | 2.23 | Ike Delock | 125.3 | BOS |
| +064+ | 2.22 | Dave Hillman | 104.3 | CHN |
| +071+ | 2.01 | Ray Semproch | 188.3 | PHI |
| +076+ | 1.9 | Gary Bell | 137.7 | CLE |
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