| Starter | Tm | Tier | Game |
|---|---|---|---|
| Whitey Ford | NYA | 8.51 | 195809190_NYA_BAL |
| Billy Pierce | CHA | 4.33 | 195809200_CHA_OAK |
| Sam Jones | SLN | 4.13 | 195809180_ATL_SLN |
| Jack Harshman | BAL | 3.9 | 195809180_BAL_CHA |
| Frank Lary | DET | 3.68 | 195809201_CLE_DET |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Don Newcombe | CIN | -2.15 | 195809190_ATL_CIN |
| Ruben Gomez | SFN | -1.5 | 195809200_SFN_SLN |
| Ralph Terry | OAK | -0.7 | 195809190_CHA_OAK |
| Vito Valentinetti | MIN | -0.67 | 195809200_MIN_BOS |
| Don Cardwell | PHI | -0.62 | 195809190_PIT_PHI |
Based on accumulated WAA for this season up to 1958-09-20.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 9.2 | Whitey Ford | 213.3 | NYA |
| +009+ | 6.46 | Billy Pierce | 236 | CHA |
| +010+ | 6.39 | Bob Turley | 242.7 | NYA |
| +014+ | 5.91 | Frank Lary | 250 | DET |
| +016+ | 5.69 | Red Witt | 106 | PIT |
| +017+ | 5.6 | Lew Burdette | 266.3 | ATL |
| +018+ | 5.59 | Stu Miller | 172.3 | SFN |
| +019+ | 5.43 | Sam Jones | 238.3 | SLN |
| +021+ | 5.24 | Jack Harshman | 220.7 | BAL |
| +022+ | 5.18 | Warren Spahn | 278 | ATL |
| +025+ | 4.7 | Billy O'Dell | 221.7 | BAL |
| +029+ | 4.48 | Dick Donovan | 235 | CHA |
| +030+ | 4.22 | Cal McLish | 212.7 | CLE |
| +031+ | 4.06 | Hoyt Wilhelm | 122 | TOT |
| +033+ | 3.98 | Carl Willey | 137 | ATL |
| +034+ | 3.94 | Joey Jay | 97 | ATL |
| +042+ | 3.34 | Robin Roberts | 260.3 | PHI |
| +044+ | 3.2 | Johnny Antonelli | 232.3 | SFN |
| +048+ | 3 | Ryne Duren | 70.3 | NYA |
| +047+ | 3 | Juan Pizarro | 86.7 | ATL |
| +057+ | 2.69 | Camilo Pascual | 169.7 | MIN |
| +059+ | 2.63 | Barry Latman | 38.7 | CHA |
| +062+ | 2.51 | Gary Bell | 165.7 | CLE |
| +072+ | 2.14 | Arnie Portocarrero | 195.7 | BAL |
| +074+ | 2.06 | Dave Hillman | 114.3 | CHN |
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