| Starter | Tm | Tier | Game |
|---|---|---|---|
| Wilbur Wood | CHA | 9.82 | 197205190_ANA_CHA |
| Gaylord Perry | CLE | 7.55 | 197205190_CLE_DET |
| Tom Seaver | NYN | 6.3 | 197205210_NYN_PHI |
| Jim Palmer | BAL | 6.09 | 197205200_BAL_MIL |
| Mel Stottlemyre | NYA | 4.76 | 197205190_BOS_NYA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Steve Renko | WAS | -3.67 | 197205212_WAS_PIT |
| Jerry Reuss | HOU | -3.09 | 197205210_HOU_LAN |
| Ron Reed | ATL | -2.92 | 197205212_ATL_SFN |
| Bill Champion | PHI | -1.94 | 197205202_NYN_PHI |
| Bob Moose | PIT | -1.91 | 197205190_WAS_PIT |
Based on accumulated WAA for this season up to 1972-05-21.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.52 | Wilbur Wood | 79.7 | CHA |
| +002+ | 3.2 | Don Sutton | 60.7 | LAN |
| +003+ | 2.92 | Mickey Lolich | 79.3 | DET |
| +004+ | 2.54 | Claude Osteen | 51.7 | LAN |
| +005+ | 2.31 | Gaylord Perry | 77 | CLE |
| +008+ | 2.26 | Milt Wilcox | 50.7 | CLE |
| +009+ | 2.18 | Fred Norman | 61 | SDN |
| +014+ | 1.96 | Mel Stottlemyre | 54.7 | NYA |
| +016+ | 1.91 | Steve Carlton | 77 | PHI |
| +022+ | 1.76 | Dave McNally | 51.3 | BAL |
| +024+ | 1.75 | Steve Arlin | 58 | SDN |
| +030+ | 1.41 | Pete Broberg | 50 | TEX |
| +033+ | 1.38 | Tommy John | 41.7 | LAN |
| +035+ | 1.37 | Tom Timmermann | 45.3 | DET |
| +036+ | 1.34 | Joe Coleman | 58.7 | DET |
| +038+ | 1.3 | Jim Shellenback | 31.7 | TEX |
| +039+ | 1.25 | Mike Torrez | 41.7 | WAS |
| XXXXX | 1.24 | Bill Singer | 54 | LAN |
| XXXXX | 1.2 | Ken Holtzman | 68 | OAK |
| XXXXX | 1.17 | Jim Kaat | 37 | MIN |
| XXXXX | 1.08 | Jim Palmer | 50.7 | BAL |
| XXXXX | 1.05 | Jon Matlack | 48.7 | NYN |
| XXXXX | 1.02 | Mike Kekich | 48 | NYA |
| XXXXX | 1.02 | Steve Kline | 42.7 | NYA |
| XXXXX | 1 | Gary Gentry | 48 | NYN |
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