| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tom Seaver | NYN | 10.66 | 197009020_NYN_SLN |
| Sam McDowell | CLE | 10.17 | 197009020_CLE_TEX |
| Jim Perry | MIN | 4.01 | 197009011_MIN_MIL |
| Clyde Wright | ANA | 2.84 | 197009020_KCA_ANA |
| Dick Bosman | TEX | 2.46 | 197009020_CLE_TEX |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Nelson Briles | SLN | -6.69 | 197008310_NYN_SLN |
| Bill Stoneman | WAS | -2.95 | 197009010_PIT_WAS |
| Grant Jackson | PHI | -2.94 | 197009020_PHI_CHN |
| Mike Kekich | NYA | -1.52 | 197009020_BAL_NYA |
| Wally Bunker | KCA | -1.34 | 197009010_KCA_ANA |
Based on accumulated WAA for this season up to 1970-09-02.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +005+ | 8.44 | Tom Seaver | 261 | NYN |
| +008+ | 7.9 | Sam McDowell | 268.3 | CLE |
| +011+ | 7.06 | Jim Palmer | 245.7 | BAL |
| +023+ | 5.35 | Jim Perry | 231.3 | MIN |
| +028+ | 4.69 | Clyde Wright | 216 | ANA |
| +032+ | 4.57 | Dick Bosman | 190 | TEX |
| +036+ | 4.5 | Tommy John | 245.3 | CHA |
| +038+ | 4.38 | Diego Segui | 140.3 | OAK |
| +042+ | 4.06 | Fritz Peterson | 210 | NYA |
| +044+ | 3.98 | Andy Messersmith | 189.7 | ANA |
| +045+ | 3.97 | Mel Stottlemyre | 225.3 | NYA |
| +047+ | 3.84 | Gary Nolan | 215.3 | CIN |
| +049+ | 3.79 | Wayne Simpson | 173.7 | CIN |
| +053+ | 3.62 | Bob Gibson | 250 | SLN |
| +055+ | 3.43 | Ray Culp | 209.7 | BOS |
| +054+ | 3.43 | Milt Pappas | 147.7 | TOT |
| +061+ | 3.26 | Dave McNally | 247.7 | BAL |
| +063+ | 3.22 | Bill Zepp | 119.3 | MIN |
| +065+ | 3.16 | Ken Holtzman | 237.7 | CHN |
| +070+ | 2.99 | Tom Hall | 107.7 | MIN |
| +075+ | 2.79 | Stan Bahnsen | 198.3 | NYA |
| +076+ | 2.75 | Pat Jarvis | 216.3 | ATL |
| +080+ | 2.64 | Danny Coombs | 160 | SDN |
| +084+ | 2.5 | Jerry Koosman | 164.3 | NYN |
| +088+ | 2.33 | Bob Johnson | 173 | KCA |
_