| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tom Seaver | NYN | 13.78 | 197309260_WAS_NYN |
| Jim Palmer | BAL | 8.94 | 197309281_CLE_BAL |
| Bert Blyleven | MIN | 6.95 | 197309260_MIN_OAK |
| Nolan Ryan | ANA | 4.28 | 197309270_MIN_ANA |
| Bill Lee | BOS | 3.81 | 197309260_BOS_CLE |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Woodie Fryman | DET | -3.84 | 197309280_DET_NYA |
| Milt Wilcox | CLE | -3.06 | 197309282_CLE_BAL |
| Jim Lonborg | PHI | -2.18 | 197309260_PHI_PIT |
| Jim McGlothlin | CHA | -1.9 | 197309280_CHA_OAK |
| Pat Dobson | NYA | -1.56 | 197309270_NYA_MIL |
Based on accumulated WAA for this season up to 1973-09-28.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 11.2 | Tom Seaver | 284 | NYN |
| +003+ | 9.25 | Bert Blyleven | 317 | MIN |
| +004+ | 9.16 | Jim Palmer | 296.7 | BAL |
| +007+ | 7.19 | Don Sutton | 256.3 | LAN |
| +008+ | 7.04 | Steve Rogers | 128.7 | WAS |
| +009+ | 7.03 | Nolan Ryan | 326 | ANA |
| +011+ | 6.82 | Bill Lee | 284.7 | BOS |
| +014+ | 6.54 | Wayne Twitchell | 223.3 | PHI |
| +022+ | 5.43 | Steve Renko | 249.7 | WAS |
| +023+ | 5.37 | Andy Messersmith | 249.7 | LAN |
| +024+ | 5.36 | Ken Holtzman | 290.3 | OAK |
| +032+ | 4.96 | Mel Stottlemyre | 273 | NYA |
| +031+ | 4.96 | Dave Roberts | 243.3 | HOU |
| +034+ | 4.93 | Jack Billingham | 286.3 | CIN |
| +037+ | 4.65 | Nelson Briles | 218.7 | PIT |
| +040+ | 4.42 | Jerry Koosman | 254 | NYN |
| +042+ | 4.33 | Lindy McDaniel | 159.7 | NYA |
| +052+ | 3.93 | Doc Medich | 226 | NYA |
| +054+ | 3.91 | Dave McNally | 260.3 | BAL |
| +058+ | 3.72 | Reggie Cleveland | 224 | SLN |
| +061+ | 3.61 | Jim Colborn | 306.3 | MIL |
| +062+ | 3.6 | Rick Reuschel | 230 | CHN |
| +063+ | 3.49 | Bill Singer | 304.7 | ANA |
| +068+ | 3.2 | Jim Rooker | 161.3 | PIT |
| +071+ | 3.15 | Dock Ellis | 192 | PIT |
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