| Starter | Tm | Tier | Game |
|---|---|---|---|
| Wilbur Wood | CHA | 10.89 | 197205260_CHA_OAK |
| Gaylord Perry | CLE | 10.08 | 197205270_CLE_BAL |
| Jim Palmer | BAL | 8.02 | 197205280_CLE_BAL |
| Tom Seaver | NYN | 6.09 | 197205260_NYN_SLN |
| Mel Stottlemyre | NYA | 5.79 | 197205270_DET_NYA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Reggie Cleveland | SLN | -3.53 | 197205280_NYN_SLN |
| Ron Reed | ATL | -2.56 | 197205260_SFN_ATL |
| Jerry Reuss | HOU | -2.38 | 197205270_LAN_HOU |
| Bill Champion | PHI | -1.92 | 197205270_PHI_PIT |
| Ernie McAnally | WAS | -1.89 | 197205260_WAS_CHN |
Based on accumulated WAA for this season up to 1972-05-28.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.43 | Wilbur Wood | 92.7 | CHA |
| +002+ | 3.01 | Don Sutton | 69.7 | LAN |
| +003+ | 2.92 | Mickey Lolich | 85.3 | DET |
| +004+ | 2.91 | Claude Osteen | 59.7 | LAN |
| +006+ | 2.85 | Gaylord Perry | 94 | CLE |
| +009+ | 2.58 | Jim Kaat | 57 | MIN |
| +012+ | 2.43 | Milt Wilcox | 57.7 | CLE |
| +017+ | 2.03 | Mel Stottlemyre | 69.7 | NYA |
| +019+ | 2.01 | Jim Palmer | 65.7 | BAL |
| +020+ | 1.93 | Steve Stone | 58.7 | SFN |
| +025+ | 1.8 | Joe Coleman | 73.3 | DET |
| +027+ | 1.71 | Steve Arlin | 74 | SDN |
| +028+ | 1.69 | Fred Norman | 65.3 | SDN |
| +030+ | 1.64 | Dave McNally | 66.3 | BAL |
| +032+ | 1.63 | Steve Carlton | 84 | PHI |
| +037+ | 1.54 | Tom Timmermann | 50.7 | DET |
| +040+ | 1.53 | Dick Drago | 72 | KCA |
| +041+ | 1.51 | Gary Nolan | 68 | CIN |
| +047+ | 1.43 | Ken Holtzman | 77 | OAK |
| +051+ | 1.33 | Jim Lonborg | 44.3 | MIL |
| XXXXX | 1.17 | Al Downing | 56 | LAN |
| XXXXX | 1.15 | Tom Griffin | 15.7 | HOU |
| XXXXX | 1.14 | Jon Matlack | 55.7 | NYN |
| XXXXX | 1.11 | Bert Blyleven | 77.7 | MIN |
| XXXXX | 1.07 | Bill Singer | 60.3 | LAN |
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