| Starter | Tm | Tier | Game |
|---|---|---|---|
| Whitey Ford | NYA | 11.72 | 195806020_CHA_NYA |
| Frank Lary | DET | 2.71 | 195806040_DET_BAL |
| Frank Sullivan | BOS | 2.52 | 195806040_CLE_BOS |
| Jack Harshman | BAL | 2.17 | 195806020_MIN_BAL |
| Billy Pierce | CHA | 1.69 | 195806040_CHA_NYA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ruben Gomez | SFN | -4.33 | 195806030_ATL_SFN |
| Johnny Klippstein | CIN | -2.72 | 195806040_CIN_LAN |
| Hal Griggs | MIN | -2.66 | 195806020_MIN_BAL |
| Robin Roberts | PHI | -0.27 | 195806040_PHI_CHN |
| Sandy Koufax | LAN | -0.24 | 195806030_CIN_LAN |
Based on accumulated WAA for this season up to 1958-06-04.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 3.88 | Whitey Ford | 72 | NYA |
| +005+ | 3.62 | Bob Turley | 76 | NYA |
| +007+ | 3.38 | Warren Spahn | 98.7 | ATL |
| +009+ | 2.66 | Jack Harshman | 71.7 | BAL |
| +010+ | 2.64 | Arnie Portocarrero | 44.3 | BAL |
| +012+ | 2.52 | Paul Foytack | 75.7 | DET |
| +016+ | 2.15 | Frank Lary | 80.7 | DET |
| +017+ | 2.13 | Don Larsen | 30 | NYA |
| +018+ | 1.89 | Taylor Phillips | 66.7 | CHN |
| +021+ | 1.81 | Jim Brosnan | 72.7 | TOT |
| +026+ | 1.73 | Johnny Kucks | 44 | NYA |
| +028+ | 1.68 | Johnny Antonelli | 83 | SFN |
| +037+ | 1.44 | Billy O'Dell | 65.3 | BAL |
| +041+ | 1.27 | Bob Rush | 49.3 | ATL |
| +042+ | 1.26 | Don Mossi | 41.7 | CLE |
| XXXXX | 1.23 | Frank Baumann | 43.3 | BOS |
| XXXXX | 1.2 | Robin Roberts | 93.3 | PHI |
| XXXXX | 1.14 | Cal McLish | 45 | CLE |
| XXXXX | 1.08 | Pedro Ramos | 81 | MIN |
| XXXXX | 1.05 | Bob Smith | 43.7 | BOS |
| XXXXX | 0.99 | Johnny Podres | 68.3 | LAN |
| XXXXX | 0.98 | Jim Wilson | 58.3 | CHA |
| XXXXX | 0.93 | Stu Miller | 26.3 | SFN |
| XXXXX | 0.79 | Early Wynn | 67.7 | CHA |
| XXXXX | 0.74 | Ned Garver | 71.7 | OAK |
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