| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sam McDowell | CLE | 7.38 | 197005020_CLE_KCA |
| Jerry Koosman | NYN | 7.05 | 197005031_NYN_SDN |
| Bob Gibson | SLN | 6.33 | 197005020_HOU_SLN |
| Jim Perry | MIN | 3.74 | 197005020_MIN_BAL |
| Bill Hands | CHN | 3.53 | 197005040_CHN_HOU |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lew Krausse | MIL | -2.98 | 197005032_MIL_NYA |
| Jim Bouton | HOU | -2.01 | 197005040_CHN_HOU |
| Chuck Dobson | OAK | -1.52 | 197005032_OAK_TEX |
| Mike McCormick | SFN | -1.01 | 197005031_PHI_SFN |
| Bill Burbach | NYA | -1 | 197005031_MIL_NYA |
Based on accumulated WAA for this season up to 1970-05-04.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +006+ | 2.33 | Tom Seaver | 51.7 | NYN |
| +007+ | 2.24 | Mickey Lolich | 58.3 | DET |
| +010+ | 2.09 | Wayne Simpson | 37.7 | CIN |
| +011+ | 2.01 | Claude Osteen | 48 | LAN |
| +012+ | 1.92 | Jim Hunter | 44.3 | OAK |
| +013+ | 1.9 | Jim Merritt | 56.7 | CIN |
| +014+ | 1.81 | Nolan Ryan | 26 | NYN |
| +016+ | 1.75 | Joe Niekro | 45.7 | DET |
| +019+ | 1.69 | Jim Perry | 44 | MIN |
| +020+ | 1.67 | Gary Gentry | 36.7 | NYN |
| +023+ | 1.6 | Jim Kaat | 45.3 | MIN |
| +024+ | 1.56 | Tom Phoebus | 22.3 | BAL |
| +026+ | 1.51 | Don Sutton | 47 | LAN |
| +030+ | 1.37 | Gary Nolan | 43.7 | CIN |
| +031+ | 1.34 | Dave Roberts | 24.3 | SDN |
| +032+ | 1.34 | Bill Hands | 42.3 | CHN |
| XXXXX | 1.19 | Carl Morton | 22 | WAS |
| XXXXX | 1.18 | Sam McDowell | 47.7 | CLE |
| XXXXX | 1.13 | Jerry Koosman | 45 | NYN |
| XXXXX | 0.97 | Denny Lemaster | 43 | HOU |
| XXXXX | 0.89 | Jim Ray | 21.3 | HOU |
| XXXXX | 0.88 | John Cumberland | 20 | NYA |
| XXXXX | 0.86 | Jerry Janeski | 37 | CHA |
| XXXXX | 0.85 | Jim Lonborg | 21 | BOS |
| XXXXX | 0.85 | George Stone | 37.7 | ATL |
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