| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tom Seaver | NYN | 13.77 | 197008010_SDN_NYN |
| Sam McDowell | CLE | 10.54 | 197008010_CLE_CHA |
| Jim Palmer | BAL | 3.89 | 197008010_KCA_BAL |
| Jim Perry | MIN | 3.07 | 197007300_MIN_CLE |
| Mel Stottlemyre | NYA | 2.6 | 197008010_NYA_MIL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Frank Reberger | SFN | -5.29 | 197007312_SFN_PHI |
| Gene Brabender | MIL | -4.26 | 197007312_NYA_MIL |
| Nelson Briles | SLN | -3.93 | 197008010_SLN_HOU |
| Tom Griffin | HOU | -2.26 | 197007300_HOU_CHN |
| Dan McGinn | WAS | -1.68 | 197007300_LAN_WAS |
Based on accumulated WAA for this season up to 1970-08-01.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +005+ | 7.59 | Tom Seaver | 207.3 | NYN |
| +007+ | 7.25 | Sam McDowell | 212 | CLE |
| +017+ | 4.85 | Jim Palmer | 188 | BAL |
| +020+ | 4.6 | Danny Coombs | 123 | SDN |
| +023+ | 4.11 | Ray Culp | 166 | BOS |
| +024+ | 4.1 | Diego Segui | 102.7 | OAK |
| +028+ | 3.93 | Jim McGlothlin | 154.7 | CIN |
| +030+ | 3.74 | Wayne Simpson | 170.7 | CIN |
| +038+ | 3.5 | Clyde Wright | 166.7 | ANA |
| +042+ | 3.29 | Jerry Koosman | 124.3 | NYN |
| +044+ | 3.23 | Mel Stottlemyre | 181.7 | NYA |
| +046+ | 3.06 | Tommy John | 190.3 | CHA |
| +047+ | 2.98 | Joe Niekro | 152 | DET |
| +050+ | 2.9 | Andy Messersmith | 164.7 | ANA |
| +051+ | 2.89 | Jim Rooker | 151 | KCA |
| +053+ | 2.83 | Jim Perry | 169.3 | MIN |
| +061+ | 2.51 | Bill Singer | 89.3 | LAN |
| +063+ | 2.46 | Pat Jarvis | 174.3 | ATL |
| +064+ | 2.44 | Stan Bahnsen | 159 | NYA |
| +067+ | 2.33 | Claude Osteen | 186 | LAN |
| +068+ | 2.31 | Mickey Lolich | 183.3 | DET |
| +070+ | 2.19 | Chuck Taylor | 91.7 | SLN |
| +075+ | 2.12 | Tom Hall | 72 | MIN |
| +078+ | 2.08 | Bert Blyleven | 78.3 | MIN |
| +081+ | 2.02 | Gary Nolan | 159 | CIN |
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