| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jack Urban | OAK | -5.26 | 195809012_DET_OAK |
| Ramon Monzant | SFN | -2.31 | 195809020_SFN_LAN |
| Dave Sisler | BOS | -1.67 | 195809020_BOS_NYA |
| Russ Kemmerer | MIN | -1.53 | 195808310_NYA_MIN |
| Don Newcombe | CIN | -1.49 | 195808312_PHI_CIN |
Based on accumulated WAA for this season up to 1958-09-02.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 8.38 | Whitey Ford | 201.3 | NYA |
| +007+ | 6.04 | Billy Pierce | 207.7 | CHA |
| +008+ | 5.9 | Bob Turley | 218 | NYA |
| +013+ | 5.47 | Jack Harshman | 200 | BAL |
| +016+ | 5.28 | Sam Jones | 212.3 | SLN |
| +018+ | 5.05 | Billy O'Dell | 197.7 | BAL |
| +020+ | 4.94 | Warren Spahn | 245 | ATL |
| +022+ | 4.31 | Lew Burdette | 231 | ATL |
| +024+ | 4.25 | Red Witt | 87.3 | PIT |
| +025+ | 3.97 | Stu Miller | 140.3 | SFN |
| +026+ | 3.82 | Joey Jay | 95.7 | ATL |
| +027+ | 3.79 | Robin Roberts | 229.3 | PHI |
| +029+ | 3.72 | Frank Lary | 206.3 | DET |
| +030+ | 3.68 | Carl Willey | 112.7 | ATL |
| +037+ | 3.31 | Johnny Antonelli | 215 | SFN |
| +038+ | 3.19 | Dick Donovan | 201.7 | CHA |
| +039+ | 3.18 | Hoyt Wilhelm | 100.7 | TOT |
| +040+ | 3.15 | Cal McLish | 186.7 | CLE |
| +041+ | 3.08 | Art Ditmar | 124.3 | NYA |
| +048+ | 2.82 | Arnie Portocarrero | 170.7 | BAL |
| +059+ | 2.36 | Larry Jackson | 170.7 | SLN |
| +063+ | 2.28 | Camilo Pascual | 151.3 | MIN |
| +065+ | 2.24 | Dave Hillman | 104.3 | CHN |
| +066+ | 2.22 | Ike Delock | 125.3 | BOS |
| +071+ | 2 | Ray Semproch | 188.3 | PHI |
_