| Starter | Tm | Tier | Game |
|---|---|---|---|
| Billy Pierce | CHA | 6.45 | 195809011_CLE_CHA |
| Bob Turley | NYA | 3.98 | 195808310_NYA_MIN |
| Sam Jones | SLN | 3.54 | 195808300_CHN_SLN |
| Jack Harshman | BAL | 3.46 | 195809011_BAL_MIN |
| Robin Roberts | PHI | 2.8 | 195808312_PHI_CIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jack Urban | OAK | -5.26 | 195809012_DET_OAK |
| Ruben Gomez | SFN | -2.86 | 195808301_LAN_SFN |
| Seth Morehead | PHI | -2.04 | 195808300_PHI_CIN |
| 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 1958-09-01.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 8.42 | Whitey Ford | 201.3 | NYA |
| +007+ | 6.08 | Billy Pierce | 207.7 | CHA |
| +008+ | 5.95 | Bob Turley | 218 | NYA |
| +013+ | 5.49 | Jack Harshman | 200 | BAL |
| +016+ | 5.32 | Sam Jones | 212.3 | SLN |
| +019+ | 5.07 | Billy O'Dell | 197.7 | BAL |
| +020+ | 4.99 | Warren Spahn | 245 | ATL |
| +022+ | 4.35 | Lew Burdette | 231 | ATL |
| +023+ | 4.27 | Red Witt | 87.3 | PIT |
| +025+ | 3.98 | Stu Miller | 140.3 | SFN |
| +026+ | 3.84 | Joey Jay | 95.7 | ATL |
| +027+ | 3.82 | Robin Roberts | 229.3 | PHI |
| +028+ | 3.76 | Frank Lary | 206.3 | DET |
| +031+ | 3.7 | Carl Willey | 112.7 | ATL |
| +035+ | 3.33 | Johnny Antonelli | 215 | SFN |
| +038+ | 3.23 | Dick Donovan | 201.7 | CHA |
| +039+ | 3.2 | Hoyt Wilhelm | 100.7 | TOT |
| +040+ | 3.19 | Cal McLish | 186.7 | CLE |
| +042+ | 3.11 | Art Ditmar | 124.3 | NYA |
| +046+ | 2.84 | Arnie Portocarrero | 170.7 | BAL |
| +058+ | 2.39 | Larry Jackson | 170.7 | SLN |
| +061+ | 2.3 | Camilo Pascual | 151.3 | MIN |
| +063+ | 2.26 | Dave Hillman | 104.3 | CHN |
| +066+ | 2.23 | Ike Delock | 125.3 | BOS |
| +069+ | 2.09 | Bob Purkey | 215 | CIN |
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