| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bob Turley | NYA | 4.49 | 195809230_NYA_BOS |
| Stu Miller | SFN | 3.42 | 195809230_CHN_SFN |
| Sam Jones | SLN | 3.17 | 195809230_SLN_LAN |
| Jack Harshman | BAL | 3.12 | 195809230_MIN_BAL |
| Warren Spahn | ATL | 2.67 | 195809210_ATL_CIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill Fischer | MIN | -4.03 | 195809210_MIN_BOS |
| Seth Morehead | PHI | -3.28 | 195809221_PIT_PHI |
| Sandy Koufax | LAN | -1.63 | 195809210_LAN_CHN |
| Early Wynn | CHA | -0.89 | 195809230_DET_CHA |
| Bennie Daniels | PIT | -0.61 | 195809222_PIT_PHI |
Based on accumulated WAA for this season up to 1958-09-23.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 9.13 | Whitey Ford | 213.3 | NYA |
| +010+ | 6.35 | Billy Pierce | 236 | CHA |
| +014+ | 5.82 | Sam Jones | 246.3 | SLN |
| +015+ | 5.79 | Frank Lary | 250 | DET |
| +017+ | 5.7 | Stu Miller | 181.7 | SFN |
| +018+ | 5.61 | Red Witt | 106 | PIT |
| +019+ | 5.52 | Jack Harshman | 229.7 | BAL |
| +020+ | 5.47 | Lew Burdette | 266.3 | ATL |
| +022+ | 5.11 | Bob Turley | 245.7 | NYA |
| +024+ | 4.99 | Warren Spahn | 284.3 | ATL |
| +025+ | 4.97 | Dick Donovan | 244 | CHA |
| +029+ | 4.59 | Billy O'Dell | 221.7 | BAL |
| +030+ | 4.57 | Cal McLish | 217.7 | CLE |
| +032+ | 4 | Hoyt Wilhelm | 122 | TOT |
| +033+ | 3.92 | Carl Willey | 137 | ATL |
| +034+ | 3.89 | Joey Jay | 97 | ATL |
| +044+ | 3.15 | Robin Roberts | 260.3 | PHI |
| +045+ | 2.97 | Ryne Duren | 70.3 | NYA |
| +053+ | 2.75 | Johnny Antonelli | 233.3 | SFN |
| +056+ | 2.64 | Camilo Pascual | 169.7 | MIN |
| +059+ | 2.61 | Barry Latman | 38.7 | CHA |
| +058+ | 2.61 | Gary Bell | 167.7 | CLE |
| +060+ | 2.51 | Juan Pizarro | 95.7 | ATL |
| +065+ | 2.4 | Dave Hillman | 121 | CHN |
| +074+ | 2.06 | Paul Foytack | 223 | DET |
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