| Starter | Tm | Tier | Game |
|---|---|---|---|
| Wilbur Wood | CHA | 10.59 | 197206200_CHA_MIL |
| Jim Palmer | BAL | 10.01 | 197206200_BAL_ANA |
| Don Sutton | LAN | 4.58 | 197206190_LAN_PIT |
| Clyde Wright | ANA | 3.78 | 197206190_BAL_ANA |
| Joe Coleman | DET | 3.34 | 197206200_DET_OAK |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jerry Reuss | HOU | -2.36 | 197206180_PHI_HOU |
| Carl Morton | WAS | -1.44 | 197206200_WAS_CIN |
| Bill Champion | PHI | -1.41 | 197206180_PHI_HOU |
| Jack Billingham | CIN | -1.03 | 197206190_WAS_CIN |
| Don Carrithers | SFN | -0.65 | 197206200_SFN_CHN |
Based on accumulated WAA for this season up to 1972-06-20.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 4.54 | Gaylord Perry | 138.7 | CLE |
| +003+ | 4.38 | Wilbur Wood | 147.7 | CHA |
| +004+ | 3.88 | Jim Palmer | 109.7 | BAL |
| +005+ | 3.85 | Joe Coleman | 112.3 | DET |
| +008+ | 3.49 | Don Sutton | 99.3 | LAN |
| +013+ | 3.19 | Claude Osteen | 87 | LAN |
| +016+ | 3.03 | Ken Holtzman | 119 | OAK |
| +019+ | 2.87 | Mickey Lolich | 132.3 | DET |
| +025+ | 2.7 | Dick Drago | 110 | KCA |
| +026+ | 2.68 | Pat Dobson | 107.7 | BAL |
| +027+ | 2.65 | Gary Nolan | 100 | CIN |
| +033+ | 2.51 | Jim Hunter | 123.3 | OAK |
| +034+ | 2.29 | Milt Wilcox | 84.7 | CLE |
| +035+ | 2.25 | Jim Kaat | 90.3 | MIN |
| +039+ | 2.09 | Clyde Wright | 83.7 | ANA |
| +040+ | 2.08 | Steve Kline | 72.7 | NYA |
| +042+ | 2.05 | Tom Timmermann | 83.7 | DET |
| +043+ | 2.03 | Steve Carlton | 121.3 | PHI |
| +048+ | 1.9 | Mike Kekich | 89.3 | NYA |
| +050+ | 1.89 | Tom Griffin | 30.7 | HOU |
| +063+ | 1.68 | Burt Hooton | 100 | CHN |
| +064+ | 1.66 | Clay Kirby | 109.7 | SDN |
| +066+ | 1.63 | Scipio Spinks | 98 | SLN |
| +070+ | 1.58 | Jon Matlack | 87.7 | NYN |
| +073+ | 1.56 | Steve Stone | 91.7 | SFN |
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