| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jim Palmer | BAL | 9.14 | 197209150_BAL_NYA |
| Gaylord Perry | CLE | 9.06 | 197209130_CLE_MIL |
| Steve Carlton | PHI | 9 | 197209150_WAS_PHI |
| Wilbur Wood | CHA | 7.71 | 197209130_CHA_KCA |
| Roger Nelson | KCA | 2.86 | 197209150_KCA_MIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ken Brett | MIL | -2.14 | 197209140_CLE_MIL |
| Carl Morton | WAS | -2.13 | 197209130_SLN_WAS |
| Steve Arlin | SDN | -1.22 | 197209140_SDN_HOU |
| Jerry Reuss | HOU | -1.12 | 197209140_SDN_HOU |
| Dick Bosman | TEX | -0.88 | 197209130_TEX_ANA |
Based on accumulated WAA for this season up to 1972-09-15.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 8.71 | Jim Palmer | 252.7 | BAL |
| +005+ | 8.63 | Steve Carlton | 311.3 | PHI |
| +006+ | 8.43 | Gaylord Perry | 304.7 | CLE |
| +009+ | 7.26 | Wilbur Wood | 342.7 | CHA |
| +014+ | 6.87 | Jim Hunter | 264.3 | OAK |
| +017+ | 6.46 | Steve Kline | 210.7 | NYA |
| +022+ | 5.16 | Don Sutton | 234.7 | LAN |
| +024+ | 5.02 | Mickey Lolich | 291.3 | DET |
| +032+ | 4.56 | Gary Nolan | 171 | CIN |
| +033+ | 4.52 | Steve Blass | 223 | PIT |
| +035+ | 4.47 | Nolan Ryan | 240.3 | ANA |
| +038+ | 4.24 | Roger Nelson | 149.3 | KCA |
| +046+ | 3.99 | Pat Dobson | 251.3 | BAL |
| +047+ | 3.82 | Bob Gibson | 241 | SLN |
| +049+ | 3.79 | Mike Cuellar | 218.7 | BAL |
| +052+ | 3.68 | Joe Coleman | 246.7 | DET |
| +053+ | 3.67 | Johnny Odom | 174.3 | OAK |
| +056+ | 3.59 | Ken Holtzman | 243 | OAK |
| +055+ | 3.59 | Jon Matlack | 211.7 | NYN |
| +057+ | 3.53 | Dick Tidrow | 209.7 | CLE |
| +058+ | 3.49 | Luis Tiant | 135.7 | BOS |
| +059+ | 3.44 | Dick Woodson | 224 | MIN |
| +060+ | 3.42 | Mike Paul | 141 | TEX |
| +063+ | 3.31 | Jim McAndrew | 144 | NYN |
| +067+ | 3.08 | Jim Kaat | 113.3 | MIN |
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