| Starter | Tm | Tier | Game |
|---|---|---|---|
| Whitey Ford | NYA | 18.03 | 195808031_NYA_CHA |
| Warren Spahn | ATL | 4.53 | 195808032_SFN_ATL |
| Arnie Portocarrero | BAL | 2.73 | 195808040_NYA_BAL |
| Johnny Antonelli | SFN | 2.58 | 195808031_SFN_ATL |
| Cal McLish | CLE | 1.33 | 195808050_CLE_DET |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dick Drott | CHN | -5.27 | 195808040_SFN_CHN |
| Ruben Gomez | SFN | -4.5 | 195808032_SFN_ATL |
| Hal Griggs | MIN | -3.92 | 195808032_MIN_OAK |
| Jack Urban | OAK | -2.11 | 195808032_MIN_OAK |
| Don Newcombe | CIN | -1.43 | 195808050_PHI_CIN |
Based on accumulated WAA for this season up to 1958-08-05.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 8.58 | Whitey Ford | 175 | NYA |
| +006+ | 5.49 | Bob Turley | 180.3 | NYA |
| +008+ | 5 | Sam Jones | 166 | SLN |
| +014+ | 3.86 | Billy Pierce | 160.3 | CHA |
| +015+ | 3.81 | Robin Roberts | 186.7 | PHI |
| +017+ | 3.64 | Cal McLish | 144.7 | CLE |
| +018+ | 3.61 | Joey Jay | 84.7 | ATL |
| +020+ | 3.52 | Jack Harshman | 149.3 | BAL |
| +023+ | 3.37 | Warren Spahn | 194.3 | ATL |
| +025+ | 3.28 | Arnie Portocarrero | 144.3 | BAL |
| +029+ | 3.12 | Hoyt Wilhelm | 76.3 | CLE |
| +031+ | 3.07 | Johnny Antonelli | 169.7 | SFN |
| +037+ | 2.72 | Ray Semproch | 160 | PHI |
| +041+ | 2.6 | Stu Miller | 103.7 | SFN |
| +043+ | 2.41 | Carl Willey | 69 | ATL |
| +044+ | 2.36 | Art Ditmar | 84.7 | NYA |
| +045+ | 2.33 | Ike Delock | 87.7 | BOS |
| +046+ | 2.33 | Ray Moore | 101 | CHA |
| +047+ | 2.29 | Billy O'Dell | 156.7 | BAL |
| +048+ | 2.26 | Wilmer Mizell | 133 | SLN |
| +049+ | 2.25 | Frank Lary | 164 | DET |
| +052+ | 2.17 | Red Witt | 54 | PIT |
| +058+ | 1.91 | Camilo Pascual | 113.3 | MIN |
| +061+ | 1.88 | Dick Donovan | 161.7 | CHA |
| +063+ | 1.85 | Lew Burdette | 177.3 | ATL |
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