| Starter | Tm | Tier | Game |
|---|---|---|---|
| Steve Hargan | CLE | -4.32 | 197004300_CLE_MIN |
| Bill Stoneman | WAS | -4.25 | 197004300_WAS_LAN |
| Lew Krausse | MIL | -3.16 | 197004290_MIL_TEX |
| Gary Peters | BOS | -2.95 | 197004300_OAK_BOS |
| Tommie Sisk | CHA | -2.68 | 197004290_BAL_CHA |
Based on accumulated WAA for this season up to 1970-05-01.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +006+ | 2.24 | Tom Seaver | 51.7 | NYN |
| +008+ | 2.14 | Mickey Lolich | 58.3 | DET |
| +009+ | 2.11 | Jim Merritt | 50.3 | CIN |
| +010+ | 2.05 | Wayne Simpson | 37.7 | CIN |
| +011+ | 1.86 | Jim Hunter | 44.3 | OAK |
| +014+ | 1.76 | Nolan Ryan | 26 | NYN |
| +016+ | 1.53 | Tom Phoebus | 22.3 | BAL |
| +017+ | 1.48 | Claude Osteen | 40 | LAN |
| +018+ | 1.47 | Jim Kaat | 37.3 | MIN |
| +022+ | 1.44 | Don Sutton | 47 | LAN |
| +020+ | 1.44 | Steve Blass | 39 | PIT |
| +021+ | 1.44 | Jim Perry | 37 | MIN |
| +023+ | 1.42 | Joe Niekro | 38 | DET |
| XXXXX | 1.23 | Gary Gentry | 29.7 | NYN |
| XXXXX | 1.18 | Sam McDowell | 39.3 | CLE |
| XXXXX | 1.17 | Joe Coleman | 34.7 | TEX |
| XXXXX | 1.16 | George Culver | 32.7 | SLN |
| XXXXX | 1.14 | Carl Morton | 22 | WAS |
| XXXXX | 1.13 | Bill Hands | 36.3 | CHN |
| XXXXX | 1.06 | Dave Roberts | 21.3 | SDN |
| XXXXX | 1.03 | Gary Nolan | 35.7 | CIN |
| XXXXX | 0.94 | Mike Torrez | 27.7 | SLN |
| XXXXX | 0.94 | Jerry Koosman | 38.7 | NYN |
| XXXXX | 0.85 | Woodie Fryman | 26.3 | PHI |
| XXXXX | 0.82 | Jim Lonborg | 21 | BOS |
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