| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tom Seaver | NYN | 11.59 | 197009071_WAS_NYN |
| Sam McDowell | CLE | 9.27 | 197009071_BOS_CLE |
| Jim Palmer | BAL | 7.12 | 197009070_BAL_DET |
| Clyde Wright | ANA | 3.4 | 197009060_MIN_ANA |
| Diego Segui | OAK | 3.18 | 197009072_OAK_CHA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Frank Reberger | SFN | -4.43 | 197009080_CIN_SFN |
| Dan McGinn | WAS | -1.69 | 197009072_WAS_NYN |
| Lowell Palmer | PHI | -1.52 | 197009072_SLN_PHI |
| Mike Kekich | NYA | -1.34 | 197009070_NYA_TEX |
| Ron Reed | ATL | -0.88 | 197009060_SFN_ATL |
Based on accumulated WAA for this season up to 1970-09-08.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +007+ | 8.31 | Tom Seaver | 268 | NYN |
| +009+ | 8 | Sam McDowell | 275.3 | CLE |
| +015+ | 6.54 | Jim Palmer | 260.3 | BAL |
| +023+ | 5.53 | Jim Perry | 237.3 | MIN |
| +031+ | 4.91 | Diego Segui | 152.7 | OAK |
| +037+ | 4.7 | Fritz Peterson | 219 | NYA |
| +036+ | 4.7 | Clyde Wright | 222.3 | ANA |
| +042+ | 4.31 | Andy Messersmith | 192.7 | ANA |
| +043+ | 4.28 | Dick Bosman | 197 | TEX |
| +045+ | 4.19 | Tommy John | 246.3 | CHA |
| +048+ | 4.03 | Gary Nolan | 221.3 | CIN |
| +050+ | 3.93 | Bob Gibson | 259 | SLN |
| +052+ | 3.83 | Wayne Simpson | 173.7 | CIN |
| +056+ | 3.63 | Mel Stottlemyre | 239.7 | NYA |
| +055+ | 3.63 | Ray Culp | 218.7 | BOS |
| +059+ | 3.54 | Tom Hall | 115.7 | MIN |
| +064+ | 3.34 | Stan Bahnsen | 206.3 | NYA |
| +069+ | 3.22 | Bob Johnson | 182 | KCA |
| +072+ | 3.02 | Dave McNally | 254 | BAL |
| +073+ | 2.98 | Ken Holtzman | 246.7 | CHN |
| +079+ | 2.8 | Gaylord Perry | 280.7 | SFN |
| +082+ | 2.65 | Jerry Koosman | 172.3 | NYN |
| +084+ | 2.63 | Milt Pappas | 152.3 | TOT |
| +086+ | 2.57 | Ferguson Jenkins | 269.3 | CHN |
| +090+ | 2.41 | Marcelino Lopez | 54 | BAL |
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