| Starter | Tm | Tier | Game |
|---|---|---|---|
| Billy Pierce | CHA | 4.33 | 195809200_CHA_OAK |
| Frank Lary | DET | 3.68 | 195809201_CLE_DET |
| Lew Burdette | ATL | 2.78 | 195809200_ATL_CIN |
| Robin Roberts | PHI | 1.13 | 195809200_PIT_PHI |
| Hoyt Wilhelm | BAL | 1.09 | 195809200_NYA_BAL |
| 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 |
| Ruben Gomez | SFN | -1.5 | 195809200_SFN_SLN |
| Bennie Daniels | PIT | -0.61 | 195809222_PIT_PHI |
Based on accumulated WAA for this season up to 1958-09-22.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 9.13 | Whitey Ford | 213.3 | NYA |
| +010+ | 6.37 | Billy Pierce | 236 | CHA |
| +011+ | 6.31 | Bob Turley | 242.7 | NYA |
| +015+ | 5.81 | Frank Lary | 250 | DET |
| +016+ | 5.62 | Red Witt | 106 | PIT |
| +017+ | 5.52 | Stu Miller | 172.3 | SFN |
| +018+ | 5.49 | Lew Burdette | 266.3 | ATL |
| +020+ | 5.34 | Sam Jones | 238.3 | SLN |
| +021+ | 5.15 | Jack Harshman | 220.7 | BAL |
| +023+ | 5.01 | Warren Spahn | 284.3 | ATL |
| +024+ | 4.99 | Dick Donovan | 244 | CHA |
| +029+ | 4.61 | Billy O'Dell | 221.7 | BAL |
| +030+ | 4.14 | Cal McLish | 212.7 | CLE |
| +031+ | 4.01 | Hoyt Wilhelm | 122 | TOT |
| +034+ | 3.93 | Carl Willey | 137 | ATL |
| +035+ | 3.9 | Joey Jay | 97 | ATL |
| +044+ | 3.16 | Robin Roberts | 260.3 | PHI |
| +048+ | 2.97 | Juan Pizarro | 86.7 | ATL |
| +047+ | 2.97 | Ryne Duren | 70.3 | NYA |
| +051+ | 2.78 | Johnny Antonelli | 233.3 | SFN |
| +057+ | 2.64 | Camilo Pascual | 169.7 | MIN |
| +058+ | 2.63 | Gary Bell | 167.7 | CLE |
| +060+ | 2.61 | Barry Latman | 38.7 | CHA |
| +073+ | 2.06 | Arnie Portocarrero | 195.7 | BAL |
| +074+ | 2.04 | Ron Kline | 238 | PIT |
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