| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jim Perry | MIN | 5.05 | 197009050_MIN_ANA |
| Clyde Wright | ANA | 3.4 | 197009060_MIN_ANA |
| Fritz Peterson | NYA | 2.35 | 197009060_CLE_NYA |
| Ray Culp | BOS | 1.79 | 197009050_BAL_BOS |
| Bob Gibson | SLN | 1.73 | 197009060_WAS_SLN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bill Stoneman | WAS | -3.19 | 197009050_WAS_SLN |
| Rich Robertson | SFN | -3.09 | 197009052_SFN_ATL |
| Jerry Janeski | CHA | -2.65 | 197009040_CHA_MIL |
| Mike McQueen | ATL | -1.2 | 197009052_SFN_ATL |
| Skip Lockwood | MIL | -1.19 | 197009040_CHA_MIL |
Based on accumulated WAA for this season up to 1970-09-06.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +006+ | 8.46 | Tom Seaver | 261 | NYN |
| +008+ | 7.94 | Sam McDowell | 268.3 | CLE |
| +013+ | 6.95 | Jim Palmer | 254 | BAL |
| +021+ | 5.48 | Jim Perry | 237.3 | MIN |
| +032+ | 4.65 | Fritz Peterson | 219 | NYA |
| +033+ | 4.62 | Clyde Wright | 222.3 | ANA |
| +034+ | 4.6 | Diego Segui | 147.3 | OAK |
| +036+ | 4.47 | Tommy John | 245.3 | CHA |
| +039+ | 4.45 | Dick Bosman | 190 | TEX |
| +042+ | 4.24 | Andy Messersmith | 192.7 | ANA |
| +047+ | 3.93 | Bob Gibson | 259 | SLN |
| +051+ | 3.82 | Gary Nolan | 215.3 | CIN |
| +052+ | 3.78 | Wayne Simpson | 173.7 | CIN |
| +054+ | 3.58 | Ray Culp | 218.7 | BOS |
| +058+ | 3.52 | Tom Hall | 115.7 | MIN |
| +061+ | 3.42 | Milt Pappas | 147.7 | TOT |
| +063+ | 3.4 | Mel Stottlemyre | 230.7 | NYA |
| +064+ | 3.3 | Stan Bahnsen | 206.3 | NYA |
| +073+ | 2.96 | Dave McNally | 254 | BAL |
| +074+ | 2.93 | Ken Holtzman | 246.7 | CHN |
| +076+ | 2.75 | Gaylord Perry | 280.7 | SFN |
| +077+ | 2.72 | Pat Jarvis | 216.3 | ATL |
| +079+ | 2.65 | Danny Coombs | 160 | SDN |
| +082+ | 2.61 | Jerry Koosman | 172.3 | NYN |
| +083+ | 2.6 | Bill Zepp | 124 | MIN |
_