| Starter | Tm | Tier | Game |
|---|---|---|---|
| Steve Carlton | PHI | 11.07 | 197210030_PHI_CHN |
| Jim Hunter | OAK | 7 | 197210030_OAK_ANA |
| Don Sutton | LAN | 5.76 | 197210030_LAN_ATL |
| Nolan Ryan | ANA | 4.17 | 197210040_OAK_ANA |
| Luis Tiant | BOS | 3.37 | 197210030_BOS_DET |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ken Brett | MIL | -2.65 | 197210020_MIL_NYA |
| Steve Renko | WAS | -2.22 | 197210031_NYN_WAS |
| Dan McGinn | CHN | -1.37 | 197210030_PHI_CHN |
| Wayne Twitchell | PHI | -1 | 197210020_PHI_CHN |
| Ken Forsch | HOU | -0.7 | 197210030_HOU_CIN |
Based on accumulated WAA for this season up to 1972-10-04.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 10.62 | Steve Carlton | 346.3 | PHI |
| +003+ | 10.58 | Gaylord Perry | 342.7 | CLE |
| +009+ | 8 | Jim Hunter | 295.3 | OAK |
| +010+ | 7.82 | Jim Palmer | 274.3 | BAL |
| +013+ | 7.36 | Don Sutton | 272.7 | LAN |
| +018+ | 6.74 | Nolan Ryan | 284.3 | ANA |
| +019+ | 6.56 | Wilbur Wood | 376.7 | CHA |
| +020+ | 6.03 | Mickey Lolich | 327.3 | DET |
| +024+ | 5.73 | Luis Tiant | 179 | BOS |
| +029+ | 5.21 | Bob Gibson | 278 | SLN |
| +030+ | 5.16 | Jon Matlack | 244 | NYN |
| +033+ | 5 | Steve Kline | 236.3 | NYA |
| +038+ | 4.92 | Gary Nolan | 176 | CIN |
| +040+ | 4.8 | Roger Nelson | 173.3 | KCA |
| +043+ | 4.49 | Ken Holtzman | 265.3 | OAK |
| +045+ | 4.42 | Steve Blass | 249.7 | PIT |
| +046+ | 4.4 | Mike Paul | 161.7 | TEX |
| +048+ | 4.21 | Pat Dobson | 268.3 | BAL |
| +051+ | 4.14 | Mike Cuellar | 248.3 | BAL |
| +063+ | 3.49 | Claude Osteen | 252 | LAN |
| +066+ | 3.33 | Bert Blyleven | 287.3 | MIN |
| +069+ | 3.23 | Joe Coleman | 280 | DET |
| +072+ | 3.06 | Jim Kaat | 113.3 | MIN |
| +073+ | 3.03 | Dick Tidrow | 237.3 | CLE |
| +075+ | 2.96 | Dick Woodson | 251.7 | MIN |
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