| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bert Blyleven | MIN | 7.66 | 197307110_BOS_MIN |
| Jim Palmer | BAL | 6.35 | 197307100_ANA_BAL |
| Don Sutton | LAN | 6.19 | 197307110_SLN_LAN |
| Nolan Ryan | ANA | 2.9 | 197307110_ANA_BAL |
| Gaylord Perry | CLE | 2.79 | 197307110_OAK_CLE |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lloyd Allen | TEX | -4.25 | 197307110_TEX_DET |
| Jim Lonborg | PHI | -2.55 | 197307120_HOU_PHI |
| Brent Strom | CLE | -2.2 | 197307122_CLE_MIN |
| Johnny Odom | OAK | -1.87 | 197307100_OAK_CLE |
| Steve Busby | KCA | -1.38 | 197307100_KCA_MIL |
Based on accumulated WAA for this season up to 1973-07-12.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 6.57 | Ken Holtzman | 174.3 | OAK |
| +004+ | 5.83 | Bert Blyleven | 176.7 | MIN |
| +006+ | 5.48 | Tom Seaver | 144.7 | NYN |
| +007+ | 5.35 | Wilbur Wood | 227 | CHA |
| +009+ | 4.92 | Rick Reuschel | 141 | CHN |
| +010+ | 4.87 | Bill Lee | 147 | BOS |
| +011+ | 4.8 | Don Sutton | 166 | LAN |
| +012+ | 4.7 | Bill Singer | 178 | ANA |
| +013+ | 4.64 | Wayne Twitchell | 122 | PHI |
| +017+ | 3.78 | Rollie Fingers | 71 | OAK |
| +021+ | 3.52 | Dave McNally | 147.7 | BAL |
| +022+ | 3.4 | Ron Bryant | 157.3 | SFN |
| +025+ | 3.03 | Ross Grimsley | 132.3 | CIN |
| +026+ | 3 | Sonny Siebert | 79.3 | TOT |
| +028+ | 2.98 | Steve Renko | 124.3 | WAS |
| +033+ | 2.84 | Fred Beene | 60.3 | NYA |
| +034+ | 2.77 | Nolan Ryan | 180 | ANA |
| +045+ | 2.55 | Jim Palmer | 143.7 | BAL |
| +047+ | 2.49 | Nelson Briles | 128 | PIT |
| +052+ | 2.43 | Doc Medich | 122 | NYA |
| +054+ | 2.42 | Mel Stottlemyre | 150.3 | NYA |
| +056+ | 2.41 | Stan Bahnsen | 158.3 | CHA |
| +058+ | 2.38 | Rick Wise | 140 | SLN |
| +064+ | 2.2 | John Curtis | 133.3 | BOS |
| +065+ | 2.18 | Dave Roberts | 133 | HOU |
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