| Starter | Tm | Tier | Game |
|---|---|---|---|
| Whitey Ford | NYA | 8.54 | 195809142_NYA_OAK |
| Sam Jones | SLN | 4.27 | 195809140_SLN_PHI |
| Billy Pierce | CHA | 3.84 | 195809141_MIN_CHA |
| Frank Lary | DET | 3.06 | 195809160_NYA_DET |
| Stu Miller | SFN | 2.85 | 195809141_SFN_CIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dick Drott | CHN | -4.52 | 195809160_CHN_PHI |
| Bill Fischer | MIN | -3.99 | 195809141_MIN_CHA |
| Don Newcombe | CIN | -1.79 | 195809142_SFN_CIN |
| Ramon Monzant | SFN | -1.75 | 195809142_SFN_CIN |
| Jack Sanford | PHI | -1.5 | 195809140_SLN_PHI |
Based on accumulated WAA for this season up to 1958-09-16.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 8.62 | Whitey Ford | 206.3 | NYA |
| +006+ | 6.81 | Bob Turley | 235 | NYA |
| +011+ | 6.25 | Billy Pierce | 228 | CHA |
| +012+ | 6.06 | Sam Jones | 234.7 | SLN |
| +016+ | 5.74 | Red Witt | 106 | PIT |
| +017+ | 5.72 | Warren Spahn | 272 | ATL |
| +018+ | 5.63 | Frank Lary | 241 | DET |
| +019+ | 5.62 | Jack Harshman | 214.7 | BAL |
| +021+ | 5.29 | Lew Burdette | 260.3 | ATL |
| +023+ | 5.06 | Stu Miller | 163.3 | SFN |
| +025+ | 4.79 | Billy O'Dell | 221.7 | BAL |
| +027+ | 4.57 | Dick Donovan | 235 | CHA |
| +031+ | 4.18 | Carl Willey | 132 | ATL |
| +032+ | 3.88 | Cal McLish | 205.7 | CLE |
| +033+ | 3.83 | Joey Jay | 95.7 | ATL |
| +039+ | 3.44 | Robin Roberts | 251.3 | PHI |
| +041+ | 3.37 | Juan Pizarro | 83.7 | ATL |
| +042+ | 3.3 | Johnny Antonelli | 232.3 | SFN |
| +043+ | 3.29 | Hoyt Wilhelm | 113 | TOT |
| +048+ | 3.17 | Gary Bell | 163 | CLE |
| +050+ | 3.02 | Ryne Duren | 70.3 | NYA |
| +059+ | 2.6 | Arnie Portocarrero | 190.7 | BAL |
| +064+ | 2.38 | Wilmer Mizell | 184.7 | SLN |
| +068+ | 2.23 | Camilo Pascual | 161.7 | MIN |
| +070+ | 2.18 | Bob Purkey | 244 | CIN |
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