| Starter | Tm | Tier | Game |
|---|---|---|---|
| Whitey Ford | NYA | 15.76 | 195807202_OAK_NYA |
| Warren Spahn | ATL | 5.83 | 195807200_ATL_CHN |
| Frank Lary | DET | 2.72 | 195807190_DET_BOS |
| Frank Sullivan | BOS | 2.5 | 195807201_DET_BOS |
| Arnie Portocarrero | BAL | 1.73 | 195807200_CLE_BAL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dick Drott | CHN | -4.66 | 195807210_CHN_CIN |
| Hal Griggs | MIN | -4.6 | 195807202_CHA_MIN |
| Lindy McDaniel | SLN | -2.64 | 195807210_SLN_ATL |
| Dave Sisler | BOS | -1.9 | 195807190_DET_BOS |
| Jack Urban | OAK | -1.24 | 195807202_OAK_NYA |
Based on accumulated WAA for this season up to 1958-07-21.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 7.28 | Whitey Ford | 152 | NYA |
| +006+ | 4.61 | Bob Turley | 145.7 | NYA |
| +010+ | 3.96 | Arnie Portocarrero | 119.7 | BAL |
| +012+ | 3.75 | Stu Miller | 79 | SFN |
| +017+ | 3.52 | Billy Pierce | 139.3 | CHA |
| +019+ | 3.36 | Robin Roberts | 168.7 | PHI |
| +020+ | 3.35 | Hoyt Wilhelm | 75.7 | CLE |
| +021+ | 3.05 | Billy O'Dell | 140 | BAL |
| +022+ | 3.02 | Ike Delock | 69.7 | BOS |
| +024+ | 2.85 | Jack Harshman | 126 | BAL |
| +025+ | 2.78 | Joey Jay | 70.3 | ATL |
| +026+ | 2.76 | Sam Jones | 139 | SLN |
| +036+ | 2.38 | Frank Lary | 143 | DET |
| +037+ | 2.37 | Warren Spahn | 175 | ATL |
| +041+ | 2.29 | Johnny Antonelli | 146.7 | SFN |
| +042+ | 2.26 | Don Larsen | 79.3 | NYA |
| +046+ | 2.15 | Art Ditmar | 64 | NYA |
| +050+ | 2.04 | Camilo Pascual | 88.3 | MIN |
| +051+ | 2.02 | Wilmer Mizell | 121.3 | SLN |
| +052+ | 1.98 | Jim Bunning | 120.7 | DET |
| +055+ | 1.94 | Lew Burdette | 156.3 | ATL |
| +057+ | 1.9 | Cal McLish | 105.7 | CLE |
| +061+ | 1.68 | Joe Nuxhall | 99.3 | CIN |
| +062+ | 1.67 | John Briggs | 48.3 | CHN |
| +065+ | 1.63 | Ray Moore | 85.7 | CHA |
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