| Starter | Tm | Tier | Game |
|---|---|---|---|
| Wilbur Wood | CHA | 10.72 | 197205220_CHA_TEX |
| Gaylord Perry | CLE | 8.82 | 197205230_CLE_NYA |
| Tom Seaver | NYN | 6.3 | 197205210_NYN_PHI |
| Mel Stottlemyre | NYA | 6.19 | 197205230_CLE_NYA |
| Dave McNally | BAL | 4.64 | 197205230_BAL_BOS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Steve Renko | WAS | -3.67 | 197205212_WAS_PIT |
| Reggie Cleveland | SLN | -3.43 | 197205230_PIT_SLN |
| Jerry Reuss | HOU | -3.09 | 197205210_HOU_LAN |
| Ron Reed | ATL | -2.92 | 197205212_ATL_SFN |
| Jerry Janeski | TEX | -2.03 | 197205230_CHA_TEX |
Based on accumulated WAA for this season up to 1972-05-23.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.71 | Wilbur Wood | 85.7 | CHA |
| +002+ | 3.01 | Don Sutton | 69.7 | LAN |
| +003+ | 2.96 | Gaylord Perry | 86 | CLE |
| +004+ | 2.9 | Mickey Lolich | 79.3 | DET |
| +007+ | 2.53 | Claude Osteen | 51.7 | LAN |
| +009+ | 2.25 | Milt Wilcox | 50.7 | CLE |
| +010+ | 2.18 | Fred Norman | 61 | SDN |
| +016+ | 1.94 | Steve Carlton | 77 | PHI |
| +017+ | 1.93 | Mel Stottlemyre | 62.7 | NYA |
| +021+ | 1.75 | Steve Arlin | 58 | SDN |
| +029+ | 1.53 | Jim Lonborg | 36.3 | MIL |
| +030+ | 1.51 | Joe Coleman | 66.7 | DET |
| +035+ | 1.39 | Pete Broberg | 50 | TEX |
| +036+ | 1.37 | Dave McNally | 57.3 | BAL |
| +038+ | 1.36 | Tom Timmermann | 45.3 | DET |
| +039+ | 1.31 | Gary Gentry | 55 | NYN |
| +041+ | 1.29 | Mike Torrez | 50.7 | WAS |
| +040+ | 1.29 | Jim Shellenback | 31.7 | TEX |
| XXXXX | 1.23 | Bill Singer | 54 | LAN |
| XXXXX | 1.2 | Ken Holtzman | 68 | OAK |
| XXXXX | 1.16 | Tom Griffin | 15.7 | HOU |
| XXXXX | 1.16 | Jim Kaat | 37 | MIN |
| XXXXX | 1.06 | Jon Matlack | 48.7 | NYN |
| XXXXX | 1.06 | Jim Palmer | 50.7 | BAL |
| XXXXX | 1.01 | Steve Kline | 42.7 | NYA |
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