| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bob Moose | PIT | -2.86 | 197205130_PIT_HOU |
| Al Santorini | SLN | -2.48 | 197205142_SLN_CIN |
| Rich Hand | TEX | -1.2 | 197205130_TEX_CLE |
| Ernie McAnally | WAS | -1.17 | 197205130_SDN_WAS |
| Les Cain | DET | -0.97 | 197205150_BAL_DET |
Based on accumulated WAA for this season up to 1972-05-15.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 3.22 | Wilbur Wood | 71.7 | CHA |
| +001+ | 3.22 | Don Sutton | 51.7 | LAN |
| +005+ | 2.29 | Milt Wilcox | 50.7 | CLE |
| +006+ | 2.14 | Dave McNally | 47.3 | BAL |
| +007+ | 2.1 | Steve Carlton | 59 | PHI |
| +008+ | 1.92 | Claude Osteen | 42.7 | LAN |
| +009+ | 1.89 | Gaylord Perry | 68 | CLE |
| +012+ | 1.85 | Mickey Lolich | 61.3 | DET |
| +019+ | 1.57 | Steve Arlin | 49.3 | SDN |
| +022+ | 1.45 | Tom Timmermann | 34.7 | DET |
| +024+ | 1.36 | Tom Seaver | 46.7 | NYN |
| +028+ | 1.33 | Mel Stottlemyre | 45.7 | NYA |
| XXXXX | 1.16 | Pete Broberg | 41.7 | TEX |
| XXXXX | 1.15 | Joe Coleman | 49.7 | DET |
| XXXXX | 1.1 | Milt Pappas | 44.3 | CHN |
| XXXXX | 1.05 | Jim Kaat | 30 | MIN |
| XXXXX | 1.05 | Dick Drago | 46 | KCA |
| XXXXX | 1.03 | Mike Torrez | 33.7 | WAS |
| XXXXX | 0.98 | Tommy John | 35.7 | LAN |
| XXXXX | 0.96 | Scipio Spinks | 44.3 | SLN |
| XXXXX | 0.92 | Barry Lersch | 20.7 | PHI |
| XXXXX | 0.89 | Fred Norman | 43 | SDN |
| XXXXX | 0.87 | Al Fitzmorris | 22 | KCA |
| XXXXX | 0.8 | Jim Shellenback | 21 | TEX |
| XXXXX | 0.8 | Phil Niekro | 58.7 | ATL |
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