| Starter | Tm | Tier | Game |
|---|---|---|---|
| Wilbur Wood | CHA | 9.93 | 197307090_NYA_CHA |
| Tom Seaver | NYN | 8.2 | 197307090_HOU_NYN |
| Bert Blyleven | MIN | 7.66 | 197307110_BOS_MIN |
| Jim Palmer | BAL | 6.35 | 197307100_ANA_BAL |
| Don Sutton | LAN | 6.19 | 197307110_SLN_LAN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lloyd Allen | TEX | -4.25 | 197307110_TEX_DET |
| Ron Reed | ATL | -2.46 | 197307090_ATL_PHI |
| Johnny Odom | OAK | -1.87 | 197307100_OAK_CLE |
| Steve Busby | KCA | -1.38 | 197307100_KCA_MIL |
| Steve Arlin | SDN | -1.16 | 197307110_PIT_SDN |
Based on accumulated WAA for this season up to 1973-07-11.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 6.53 | Ken Holtzman | 174.3 | OAK |
| +004+ | 5.79 | Bert Blyleven | 176.7 | MIN |
| +005+ | 5.45 | Tom Seaver | 144.7 | NYN |
| +007+ | 5.31 | Wilbur Wood | 227 | CHA |
| +008+ | 5.21 | Bill Singer | 177 | ANA |
| +010+ | 4.89 | Rick Reuschel | 141 | CHN |
| +011+ | 4.84 | Bill Lee | 147 | BOS |
| +012+ | 4.76 | Don Sutton | 166 | LAN |
| +014+ | 4.62 | Wayne Twitchell | 122 | PHI |
| +020+ | 3.5 | Dave McNally | 147.7 | BAL |
| +021+ | 3.46 | Rollie Fingers | 67.3 | OAK |
| +022+ | 3.37 | Ron Bryant | 157.3 | SFN |
| +026+ | 3.01 | Ross Grimsley | 132.3 | CIN |
| +027+ | 2.98 | Sonny Siebert | 79.3 | TOT |
| +028+ | 2.95 | Steve Renko | 124.3 | WAS |
| +032+ | 2.83 | Fred Beene | 60.3 | NYA |
| +037+ | 2.74 | Nolan Ryan | 180 | ANA |
| +045+ | 2.53 | Jim Palmer | 143.7 | BAL |
| +047+ | 2.47 | Nelson Briles | 128 | PIT |
| +052+ | 2.41 | Doc Medich | 122 | NYA |
| +053+ | 2.4 | Mel Stottlemyre | 150.3 | NYA |
| +055+ | 2.39 | Stan Bahnsen | 158.3 | CHA |
| +058+ | 2.34 | Rick Wise | 140 | SLN |
| +061+ | 2.18 | John Curtis | 133.3 | BOS |
| +062+ | 2.15 | Dave Roberts | 133 | HOU |
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