| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tom Seaver | NYN | 8.77 | 197009202_PIT_NYN |
| Jim Palmer | BAL | 7.25 | 197009200_CLE_BAL |
| Jim Perry | MIN | 3.91 | 197009210_MIN_OAK |
| Clyde Wright | ANA | 3.86 | 197009200_ANA_OAK |
| Fritz Peterson | NYA | 2.68 | 197009210_TEX_NYA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jerry Janeski | CHA | -1.6 | 197009200_MIN_CHA |
| Lew Krausse | MIL | -1.39 | 197009210_ANA_MIL |
| Clay Kirby | SDN | -1.33 | 197009190_SFN_SDN |
| Wally Bunker | KCA | -0.75 | 197009190_KCA_MIL |
| Juan Marichal | SFN | -0.61 | 197009210_SFN_LAN |
Based on accumulated WAA for this season up to 1970-09-21.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +007+ | 8.48 | Sam McDowell | 292.3 | CLE |
| +009+ | 7.92 | Jim Palmer | 288.3 | BAL |
| +014+ | 7.26 | Tom Seaver | 286.3 | NYN |
| +025+ | 5.76 | Jim Perry | 264.7 | MIN |
| +026+ | 5.6 | Clyde Wright | 244.7 | ANA |
| +032+ | 5.12 | Diego Segui | 158.7 | OAK |
| +033+ | 5.06 | Fritz Peterson | 243 | NYA |
| +034+ | 5.01 | Gaylord Perry | 307.7 | SFN |
| +037+ | 4.81 | Dick Bosman | 212.7 | TEX |
| +040+ | 4.72 | Bob Gibson | 277 | SLN |
| +042+ | 4.57 | Ray Culp | 242.3 | BOS |
| +047+ | 4.39 | Tom Hall | 139.7 | MIN |
| +049+ | 4.38 | Gary Nolan | 237.7 | CIN |
| +058+ | 4.02 | Tommy John | 253.3 | CHA |
| +062+ | 3.8 | Mel Stottlemyre | 254.7 | NYA |
| +063+ | 3.76 | Wayne Simpson | 176 | CIN |
| +064+ | 3.72 | Dave McNally | 279 | BAL |
| +070+ | 3.33 | Bob Johnson | 197 | KCA |
| +072+ | 3.13 | Jerry Koosman | 199 | NYN |
| +076+ | 3.01 | Ken Holtzman | 269.7 | CHN |
| +078+ | 2.97 | Bert Blyleven | 154 | MIN |
| +079+ | 2.92 | Ferguson Jenkins | 287 | CHN |
| +080+ | 2.9 | Danny Coombs | 182.3 | SDN |
| +082+ | 2.88 | Ron Klimkowski | 97.3 | NYA |
| +083+ | 2.87 | Stan Bahnsen | 225.7 | NYA |
_