| Starter | Tm | Tier | Game |
|---|---|---|---|
| Whitey Ford | NYA | 8.51 | 195809190_NYA_BAL |
| Billy Pierce | CHA | 4.33 | 195809200_CHA_OAK |
| Frank Lary | DET | 3.68 | 195809201_CLE_DET |
| Lew Burdette | ATL | 2.78 | 195809200_ATL_CIN |
| Stu Miller | SFN | 2.75 | 195809190_SFN_SLN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill Fischer | MIN | -4.03 | 195809210_MIN_BOS |
| Don Newcombe | CIN | -2.15 | 195809190_ATL_CIN |
| Sandy Koufax | LAN | -1.63 | 195809210_LAN_CHN |
| Ruben Gomez | SFN | -1.5 | 195809200_SFN_SLN |
| Ralph Terry | OAK | -0.7 | 195809190_CHA_OAK |
Based on accumulated WAA for this season up to 1958-09-21.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 9.16 | Whitey Ford | 213.3 | NYA |
| +010+ | 6.41 | Billy Pierce | 236 | CHA |
| +011+ | 6.35 | Bob Turley | 242.7 | NYA |
| +015+ | 5.85 | Frank Lary | 250 | DET |
| +016+ | 5.66 | Red Witt | 106 | PIT |
| +017+ | 5.55 | Stu Miller | 172.3 | SFN |
| +018+ | 5.53 | Lew Burdette | 266.3 | ATL |
| +020+ | 5.37 | Sam Jones | 238.3 | SLN |
| +021+ | 5.18 | Jack Harshman | 220.7 | BAL |
| +023+ | 5.05 | Warren Spahn | 284.3 | ATL |
| +024+ | 5.02 | Dick Donovan | 244 | CHA |
| +027+ | 4.64 | Billy O'Dell | 221.7 | BAL |
| +030+ | 4.17 | Cal McLish | 212.7 | CLE |
| +031+ | 4.03 | Hoyt Wilhelm | 122 | TOT |
| +033+ | 3.95 | Carl Willey | 137 | ATL |
| +035+ | 3.91 | Joey Jay | 97 | ATL |
| +044+ | 3.28 | Robin Roberts | 260.3 | PHI |
| +046+ | 2.98 | Juan Pizarro | 86.7 | ATL |
| +045+ | 2.98 | Ryne Duren | 70.3 | NYA |
| +050+ | 2.81 | Johnny Antonelli | 233.3 | SFN |
| +056+ | 2.66 | Camilo Pascual | 169.7 | MIN |
| +057+ | 2.65 | Gary Bell | 167.7 | CLE |
| +060+ | 2.62 | Barry Latman | 38.7 | CHA |
| +073+ | 2.09 | Arnie Portocarrero | 195.7 | BAL |
| +074+ | 2.04 | Dave Hillman | 114.3 | CHN |
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