| Starter | Tm | Tier | Game |
|---|---|---|---|
| Gaylord Perry | CLE | 8.28 | 197209040_CLE_DET |
| Wilbur Wood | CHA | 7.37 | 197209030_CHA_NYA |
| Steve Carlton | PHI | 6.58 | 197209030_PHI_ATL |
| Jim Hunter | OAK | 6.21 | 197209030_DET_OAK |
| Don Sutton | LAN | 3.11 | 197209050_CIN_LAN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dave Roberts | HOU | -2.82 | 197209050_ATL_HOU |
| Ken Brett | MIL | -2.06 | 197209042_BOS_MIL |
| Carl Morton | WAS | -1.52 | 197209041_WAS_SLN |
| Stan Bahnsen | CHA | -1.4 | 197209041_MIN_CHA |
| Steve Arlin | SDN | -1.31 | 197209050_SFN_SDN |
Based on accumulated WAA for this season up to 1972-09-05.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 8.09 | Jim Palmer | 229.3 | BAL |
| +004+ | 8 | Steve Carlton | 284.3 | PHI |
| +005+ | 7.84 | Gaylord Perry | 287.7 | CLE |
| +006+ | 7.6 | Steve Kline | 200.3 | NYA |
| +009+ | 7.5 | Wilbur Wood | 318.3 | CHA |
| +011+ | 7.19 | Jim Hunter | 253.7 | OAK |
| +023+ | 4.87 | Nolan Ryan | 224.7 | ANA |
| +025+ | 4.8 | Mickey Lolich | 270.7 | DET |
| +026+ | 4.76 | Don Sutton | 227.7 | LAN |
| +027+ | 4.75 | Gary Nolan | 170 | CIN |
| +032+ | 4.33 | Dick Tidrow | 198.3 | CLE |
| +033+ | 4.32 | Joe Coleman | 234.7 | DET |
| +035+ | 4.23 | Jon Matlack | 201.3 | NYN |
| +037+ | 4.18 | Roger Nelson | 133.3 | KCA |
| +041+ | 3.97 | Steve Blass | 214 | PIT |
| +043+ | 3.96 | Pat Dobson | 238.3 | BAL |
| +046+ | 3.77 | Mike Paul | 131 | TEX |
| +048+ | 3.64 | Ray Corbin | 133.7 | MIN |
| +051+ | 3.57 | Johnny Odom | 164 | OAK |
| +052+ | 3.53 | Luis Tiant | 121.3 | BOS |
| +053+ | 3.42 | Jim McAndrew | 135.7 | NYN |
| +057+ | 3.36 | Bob Gibson | 225 | SLN |
| +063+ | 3.15 | Jim Kaat | 113.3 | MIN |
| +066+ | 2.98 | Mike Cuellar | 201.3 | BAL |
| +067+ | 2.96 | Ken Holtzman | 220 | OAK |
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