| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jim Palmer | BAL | 9.14 | 197209150_BAL_NYA |
| Steve Carlton | PHI | 9 | 197209150_WAS_PHI |
| Gaylord Perry | CLE | 8.69 | 197209170_CLE_BOS |
| Wilbur Wood | CHA | 6.9 | 197209170_CHA_ANA |
| Jim Hunter | OAK | 6.14 | 197209170_TEX_OAK |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Al Santorini | SLN | -1.97 | 197209160_PIT_SLN |
| Wayne Twitchell | PHI | -1.8 | 197209160_WAS_PHI |
| Ernie McAnally | WAS | -1.4 | 197209170_WAS_PHI |
| Wayne Simpson | CIN | -1.13 | 197209170_SDN_CIN |
| Ron Reed | ATL | -1.1 | 197209161_SFN_ATL |
Based on accumulated WAA for this season up to 1972-09-17.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +004+ | 9.03 | Gaylord Perry | 313.7 | CLE |
| +005+ | 8.8 | Jim Palmer | 252.7 | BAL |
| +006+ | 8.72 | Steve Carlton | 311.3 | PHI |
| +009+ | 7.79 | Wilbur Wood | 350.7 | CHA |
| +012+ | 7.43 | Jim Hunter | 273.3 | OAK |
| +018+ | 6.02 | Steve Kline | 215 | NYA |
| +020+ | 5.94 | Don Sutton | 243.7 | LAN |
| +023+ | 5.16 | Nolan Ryan | 248.3 | ANA |
| +024+ | 5.11 | Mickey Lolich | 291.3 | DET |
| +031+ | 4.62 | Gary Nolan | 171 | CIN |
| +036+ | 4.45 | Steve Blass | 229 | PIT |
| +040+ | 4.29 | Roger Nelson | 149.3 | KCA |
| +042+ | 4.22 | Luis Tiant | 144.7 | BOS |
| +046+ | 4.08 | Pat Dobson | 251.3 | BAL |
| +047+ | 4.03 | Joe Coleman | 255.7 | DET |
| +051+ | 3.93 | Mike Cuellar | 227.7 | BAL |
| +052+ | 3.9 | Bob Gibson | 241 | SLN |
| +055+ | 3.73 | Johnny Odom | 174.3 | OAK |
| +057+ | 3.69 | Jon Matlack | 211.7 | NYN |
| +058+ | 3.66 | Ken Holtzman | 243 | OAK |
| +061+ | 3.49 | Dick Woodson | 224 | MIN |
| +062+ | 3.49 | Mike Paul | 141 | TEX |
| +063+ | 3.16 | Dick Tidrow | 212 | CLE |
| +066+ | 3.11 | Jim Kaat | 113.3 | MIN |
| +065+ | 3.11 | Jim McAndrew | 146 | NYN |
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