| Starter | Tm | Tier | Game |
|---|---|---|---|
| Wilbur Wood | CHA | 10.11 | 197205291_CHA_ANA |
| Mel Stottlemyre | NYA | 5.72 | 197205310_NYA_MIL |
| Mickey Lolich | DET | 4.5 | 197205291_DET_NYA |
| Ferguson Jenkins | CHN | 3.99 | 197205310_SLN_CHN |
| Bert Blyleven | MIN | 3.92 | 197205310_KCA_MIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jim Nash | ATL | -2.73 | 197205290_SDN_ATL |
| Ernie McAnally | WAS | -2.15 | 197205310_PIT_WAS |
| Jack Billingham | CIN | -1.68 | 197205300_CIN_HOU |
| Ron Bryant | SFN | -1.39 | 197205310_LAN_SFN |
| Bill Greif | SDN | -1.34 | 197205290_SDN_ATL |
Based on accumulated WAA for this season up to 1972-05-31.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.4 | Don Sutton | 77.7 | LAN |
| +003+ | 3.08 | Wilbur Wood | 98.7 | CHA |
| +004+ | 3.07 | Mickey Lolich | 92.3 | DET |
| +005+ | 2.87 | Gaylord Perry | 94 | CLE |
| +006+ | 2.8 | Claude Osteen | 66.7 | LAN |
| +011+ | 2.61 | Jim Kaat | 57 | MIN |
| +019+ | 2.19 | Milt Wilcox | 65.3 | CLE |
| +020+ | 2.01 | Jim Palmer | 65.7 | BAL |
| +024+ | 1.94 | Steve Stone | 58.7 | SFN |
| +025+ | 1.93 | Mel Stottlemyre | 76.3 | NYA |
| +028+ | 1.83 | Joe Coleman | 73.3 | DET |
| +029+ | 1.82 | Jon Matlack | 64.7 | NYN |
| +030+ | 1.76 | Steve Arlin | 74 | SDN |
| +033+ | 1.65 | Dave McNally | 66.3 | BAL |
| +036+ | 1.6 | Tom Timmermann | 56.7 | DET |
| +040+ | 1.58 | Gary Nolan | 77 | CIN |
| +038+ | 1.58 | Ken Holtzman | 84 | OAK |
| +037+ | 1.58 | Dick Drago | 72 | KCA |
| +042+ | 1.52 | Fred Norman | 68 | SDN |
| +049+ | 1.46 | Steve Kline | 51.3 | NYA |
| +050+ | 1.44 | Pat Dobson | 71.7 | BAL |
| +055+ | 1.38 | Jim Hunter | 87 | OAK |
| +056+ | 1.35 | Jim Lonborg | 44.3 | MIL |
| +058+ | 1.32 | Tom Griffin | 20.7 | HOU |
| XXXXX | 1.24 | Ferguson Jenkins | 92.3 | CHN |
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