| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sam McDowell | CLE | 9.25 | 197009220_CLE_BOS |
| Jim Perry | MIN | 3.91 | 197009210_MIN_OAK |
| Gaylord Perry | SFN | 3.37 | 197009230_SFN_LAN |
| Bob Gibson | SLN | 3.13 | 197009231_CHN_SLN |
| Dick Bosman | TEX | 3.1 | 197009220_TEX_NYA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill Stoneman | WAS | -2.13 | 197009221_WAS_PIT |
| Lew Krausse | MIL | -1.39 | 197009210_ANA_MIL |
| Joe Horlen | CHA | -1.05 | 197009211_KCA_CHA |
| Alan Foster | LAN | -0.8 | 197009220_SFN_LAN |
| Al Fitzmorris | KCA | -0.65 | 197009222_KCA_CHA |
Based on accumulated WAA for this season up to 1970-09-23.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +008+ | 7.86 | Jim Palmer | 288.3 | BAL |
| +010+ | 7.32 | Sam McDowell | 296.3 | CLE |
| +014+ | 7.2 | Tom Seaver | 286.3 | NYN |
| +027+ | 5.69 | Jim Perry | 264.7 | MIN |
| +028+ | 5.56 | Clyde Wright | 244.7 | ANA |
| +031+ | 5.26 | Bob Gibson | 286 | SLN |
| +033+ | 5.08 | Diego Segui | 158.7 | OAK |
| +034+ | 5.01 | Fritz Peterson | 243 | NYA |
| +036+ | 4.91 | Dick Bosman | 218.7 | TEX |
| +037+ | 4.88 | Gaylord Perry | 311.7 | SFN |
| +042+ | 4.66 | Gary Nolan | 243.7 | CIN |
| +044+ | 4.51 | Ray Culp | 242.3 | BOS |
| +054+ | 4.22 | Tom Hall | 147.3 | MIN |
| +055+ | 4.19 | Mel Stottlemyre | 262 | NYA |
| +061+ | 3.96 | Tommy John | 253.3 | CHA |
| +062+ | 3.72 | Wayne Simpson | 176 | CIN |
| +064+ | 3.66 | Dave McNally | 279 | BAL |
| +069+ | 3.3 | Bob Johnson | 197 | KCA |
| +072+ | 3.21 | Ferguson Jenkins | 295 | CHN |
| +073+ | 3.18 | Steve Hargan | 133.7 | CLE |
| +077+ | 3.08 | Jerry Koosman | 199 | NYN |
| +081+ | 2.98 | Ken Holtzman | 269.7 | CHN |
| +083+ | 2.94 | Bert Blyleven | 154 | MIN |
| +085+ | 2.87 | Danny Coombs | 182.3 | SDN |
| +086+ | 2.85 | Ron Klimkowski | 97.3 | NYA |
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