| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jerry Koosman | NYN | 6.7 | 197006250_NYN_CHN |
| Jim Perry | MIN | 6.49 | 197006250_MIN_MIL |
| Bob Gibson | SLN | 3.69 | 197006260_PHI_SLN |
| Andy Messersmith | ANA | 3.41 | 197006270_ANA_KCA |
| Jim Palmer | BAL | 2.77 | 197006270_BAL_TEX |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Gary Peters | BOS | -4.91 | 197006270_BOS_NYA |
| Gene Brabender | MIL | -3.1 | 197006270_OAK_MIL |
| Clay Kirby | SDN | -2.94 | 197006260_SDN_LAN |
| Dick Such | TEX | -1.68 | 197006270_BAL_TEX |
| Grant Jackson | PHI | -1.47 | 197006250_WAS_PHI |
Based on accumulated WAA for this season up to 1970-06-27.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +005+ | 5.01 | Sam McDowell | 146.3 | CLE |
| +007+ | 4.53 | Tom Seaver | 145 | NYN |
| +009+ | 4.43 | Wayne Simpson | 121 | CIN |
| +015+ | 3.98 | Danny Coombs | 87 | SDN |
| +020+ | 3.58 | Jim McGlothlin | 116.3 | CIN |
| +021+ | 3.47 | Ray Culp | 112 | BOS |
| +029+ | 3 | Claude Osteen | 139.3 | LAN |
| +030+ | 2.96 | Jerry Koosman | 83.7 | NYN |
| +034+ | 2.62 | Jim Palmer | 133.7 | BAL |
| +037+ | 2.58 | Steve Carlton | 116 | SLN |
| +041+ | 2.51 | Jim Perry | 113 | MIN |
| +043+ | 2.38 | Jim Hunter | 129.7 | OAK |
| +044+ | 2.37 | Bob Veale | 118 | PIT |
| +045+ | 2.34 | Tom Phoebus | 79.3 | BAL |
| +046+ | 2.33 | Rudy May | 108 | ANA |
| +050+ | 2.24 | Andy Messersmith | 125.7 | ANA |
| +051+ | 2.23 | Eddie Fisher | 55.3 | ANA |
| +053+ | 2.17 | Pat Jarvis | 119.7 | ATL |
| +055+ | 2.12 | Clyde Wright | 115 | ANA |
| +058+ | 2.01 | Mel Stottlemyre | 123 | NYA |
| +064+ | 1.89 | Jim Nelson | 23 | PIT |
| +066+ | 1.84 | Bill Hands | 123.3 | CHN |
| +068+ | 1.8 | Don Sutton | 135.3 | LAN |
| +074+ | 1.62 | Joe Niekro | 107 | DET |
| +078+ | 1.57 | Bob Gibson | 125.7 | SLN |
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