| Starter | Tm | Tier | Game |
|---|---|---|---|
| Whitey Ford | NYA | 14.26 | 195808230_CHA_NYA |
| Billy Pierce | CHA | 4.84 | 195808230_CHA_NYA |
| Sam Jones | SLN | 3.41 | 195808220_PHI_SLN |
| Billy O'Dell | BAL | 3.05 | 195808210_DET_BAL |
| Red Witt | PIT | 2.18 | 195808220_PIT_CHN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jack Urban | OAK | -4.58 | 195808210_OAK_MIN |
| Ruben Gomez | SFN | -3.2 | 195808220_CIN_SFN |
| Seth Morehead | PHI | -2.34 | 195808230_PHI_SLN |
| Russ Kemmerer | MIN | -1.84 | 195808220_OAK_MIN |
| Don Newcombe | CIN | -1.73 | 195808210_CIN_SFN |
Based on accumulated WAA for this season up to 1958-08-23.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 8.32 | Whitey Ford | 200.7 | NYA |
| +008+ | 5.84 | Billy Pierce | 196.3 | CHA |
| +010+ | 5.41 | Sam Jones | 199.3 | SLN |
| +013+ | 5.12 | Bob Turley | 202.3 | NYA |
| +014+ | 4.96 | Jack Harshman | 187 | BAL |
| +018+ | 4.28 | Red Witt | 85.3 | PIT |
| +019+ | 4.25 | Warren Spahn | 227 | ATL |
| +022+ | 4.02 | Billy O'Dell | 181.3 | BAL |
| +024+ | 3.87 | Joey Jay | 95.7 | ATL |
| +025+ | 3.77 | Robin Roberts | 214 | PHI |
| +027+ | 3.75 | Carl Willey | 101.3 | ATL |
| +028+ | 3.74 | Johnny Antonelli | 196.7 | SFN |
| +029+ | 3.61 | Lew Burdette | 213 | ATL |
| +030+ | 3.53 | Arnie Portocarrero | 166.7 | BAL |
| +035+ | 3.4 | Cal McLish | 171.7 | CLE |
| +036+ | 3.21 | Dick Donovan | 190.3 | CHA |
| +038+ | 3.08 | Art Ditmar | 112.7 | NYA |
| +039+ | 2.95 | Hoyt Wilhelm | 90.3 | CLE |
| +040+ | 2.91 | Stu Miller | 120.3 | SFN |
| +041+ | 2.89 | Frank Lary | 188.3 | DET |
| +043+ | 2.74 | Ike Delock | 112.3 | BOS |
| +054+ | 2.42 | Ray Moore | 123 | CHA |
| +063+ | 2.11 | Ray Semproch | 179 | PHI |
| +064+ | 2.1 | Wilmer Mizell | 151 | SLN |
| +072+ | 1.91 | Curt Raydon | 114.3 | PIT |
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