| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bob Turley | NYA | 4.48 | 195809120_NYA_CHA |
| Billy O'Dell | BAL | 4.09 | 195809110_BAL_OAK |
| Billy Pierce | CHA | 3.79 | 195809100_BOS_CHA |
| Frank Lary | DET | 2.61 | 195809120_BAL_DET |
| Lew Burdette | ATL | 1.75 | 195809120_SLN_ATL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dick Drott | CHN | -4.53 | 195809120_CHN_CIN |
| Ruben Gomez | SFN | -2.01 | 195809121_SFN_PHI |
| Russ Kemmerer | MIN | -1.9 | 195809100_MIN_DET |
| Don Cardwell | PHI | -0.78 | 195809121_SFN_PHI |
| Roger Craig | LAN | -0.39 | 195809120_LAN_PIT |
Based on accumulated WAA for this season up to 1958-09-12.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 8.4 | Whitey Ford | 201.3 | NYA |
| +006+ | 6.84 | Bob Turley | 235 | NYA |
| +011+ | 5.87 | Sam Jones | 226.7 | SLN |
| +014+ | 5.72 | Red Witt | 106 | PIT |
| +017+ | 5.61 | Billy Pierce | 219 | CHA |
| +018+ | 5.54 | Jack Harshman | 214.7 | BAL |
| +019+ | 5.29 | Warren Spahn | 263 | ATL |
| +021+ | 5.1 | Stu Miller | 157.3 | SFN |
| +023+ | 4.98 | Frank Lary | 232 | DET |
| +024+ | 4.67 | Billy O'Dell | 214.3 | BAL |
| +025+ | 4.65 | Lew Burdette | 251.3 | ATL |
| +027+ | 4.58 | Carl Willey | 129.7 | ATL |
| +029+ | 4.34 | Dick Donovan | 226 | CHA |
| +031+ | 3.81 | Joey Jay | 95.7 | ATL |
| +036+ | 3.44 | Hoyt Wilhelm | 112.7 | TOT |
| +042+ | 3.24 | Cal McLish | 196.7 | CLE |
| +043+ | 3.21 | Juan Pizarro | 82 | ATL |
| +046+ | 3.08 | Johnny Antonelli | 226 | SFN |
| +047+ | 3.02 | Robin Roberts | 242.3 | PHI |
| +054+ | 2.61 | Wilmer Mizell | 178.7 | SLN |
| +055+ | 2.54 | Gary Bell | 154 | CLE |
| +063+ | 2.29 | Art Ditmar | 131.7 | NYA |
| +070+ | 2.17 | Arnie Portocarrero | 182 | BAL |
| +069+ | 2.17 | Camilo Pascual | 161.7 | MIN |
| +073+ | 2.1 | Dave Hillman | 110 | CHN |
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