| Starter | Tm | Tier | Game |
|---|---|---|---|
| Gaylord Perry | CLE | 9.42 | 197209220_NYA_CLE |
| Jim Hunter | OAK | 6.72 | 197209230_KCA_OAK |
| Steve Kline | NYA | 4.37 | 197209220_NYA_CLE |
| Don Sutton | LAN | 4.24 | 197209220_SFN_LAN |
| Nolan Ryan | ANA | 3.29 | 197209210_KCA_ANA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jim Nash | PHI | -1.75 | 197209230_PHI_NYN |
| Reggie Cleveland | SLN | -1.59 | 197209232_CHN_SLN |
| Ernie McAnally | WAS | -1.08 | 197209230_WAS_PIT |
| Steve Arlin | SDN | -1.05 | 197209230_SDN_ATL |
| Gary Gentry | NYN | -0.6 | 197209210_PIT_NYN |
Based on accumulated WAA for this season up to 1972-09-23.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 9.52 | Gaylord Perry | 322.7 | CLE |
| +005+ | 9.15 | Steve Carlton | 320.3 | PHI |
| +008+ | 8.03 | Jim Palmer | 256 | BAL |
| +010+ | 7.64 | Jim Hunter | 280.3 | OAK |
| +015+ | 7.07 | Wilbur Wood | 356.7 | CHA |
| +016+ | 6.73 | Don Sutton | 254.7 | LAN |
| +021+ | 5.71 | Steve Kline | 221 | NYA |
| +023+ | 5.45 | Mickey Lolich | 306.3 | DET |
| +024+ | 5.43 | Nolan Ryan | 257.3 | ANA |
| +029+ | 5.02 | Jon Matlack | 229.7 | NYN |
| +032+ | 4.9 | Luis Tiant | 153.7 | BOS |
| +033+ | 4.9 | Bob Gibson | 260 | SLN |
| +037+ | 4.68 | Steve Blass | 238 | PIT |
| +038+ | 4.63 | Gary Nolan | 171 | CIN |
| +044+ | 4.3 | Pat Dobson | 259.3 | BAL |
| +046+ | 4.12 | Joe Coleman | 264.7 | DET |
| +052+ | 3.91 | Roger Nelson | 155.3 | KCA |
| +053+ | 3.84 | Mike Cuellar | 234.3 | BAL |
| +055+ | 3.67 | Dick Woodson | 237.7 | MIN |
| +057+ | 3.65 | Mike Paul | 148.3 | TEX |
| +060+ | 3.55 | Ken Holtzman | 248.3 | OAK |
| +068+ | 3.19 | Johnny Odom | 179.3 | OAK |
| +071+ | 3.1 | Jim Kaat | 113.3 | MIN |
| +072+ | 3.06 | Claude Osteen | 225.7 | LAN |
| +073+ | 2.99 | Dick Tidrow | 220.7 | CLE |
_