| Starter | Tm | Tier | Game |
|---|---|---|---|
| Frank Reberger | SFN | -3.75 | 197008210_CHN_SFN |
| Nelson Briles | SLN | -3.64 | 197008210_SLN_SDN |
| Grant Jackson | PHI | -2.47 | 197008212_HOU_PHI |
| Wally Bunker | KCA | -2.2 | 197008210_BOS_KCA |
| Jerry Janeski | CHA | -1.5 | 197008210_NYA_CHA |
Based on accumulated WAA for this season up to 1970-08-22.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +005+ | 8.51 | Tom Seaver | 238 | NYN |
| +009+ | 7.17 | Sam McDowell | 244 | CLE |
| +010+ | 6.96 | Jim Palmer | 230.7 | BAL |
| +021+ | 5.2 | Jim Perry | 211 | MIN |
| +026+ | 4.62 | Clyde Wright | 198.7 | ANA |
| +033+ | 4.37 | Diego Segui | 131.3 | OAK |
| +038+ | 4.16 | Mel Stottlemyre | 213.7 | NYA |
| +040+ | 3.87 | Wayne Simpson | 173.7 | CIN |
| +042+ | 3.84 | Ray Culp | 196 | BOS |
| +043+ | 3.79 | Ken Holtzman | 223 | CHN |
| +046+ | 3.47 | Tommy John | 220.3 | CHA |
| +047+ | 3.46 | Jerry Koosman | 151.3 | NYN |
| +049+ | 3.37 | Andy Messersmith | 180.3 | ANA |
| +053+ | 3.21 | Jim McGlothlin | 164.3 | CIN |
| +057+ | 2.97 | Pat Jarvis | 203 | ATL |
| +059+ | 2.92 | Gary Nolan | 193 | CIN |
| +066+ | 2.71 | Dick Bosman | 163 | TEX |
| +069+ | 2.68 | Gary Gentry | 154.3 | NYN |
| +073+ | 2.61 | Bob Gibson | 229 | SLN |
| +072+ | 2.61 | Claude Osteen | 214 | LAN |
| +074+ | 2.59 | Stan Bahnsen | 187 | NYA |
| +079+ | 2.56 | Sonny Siebert | 177.7 | BOS |
| +081+ | 2.54 | Tom Hall | 98 | MIN |
| +085+ | 2.45 | Danny Coombs | 153 | SDN |
| +088+ | 2.39 | Chuck Dobson | 219 | OAK |
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