| Starter | Tm | Tier | Game |
|---|---|---|---|
| Nolan Ryan | ANA | 8.38 | 197505180_ANA_BAL |
| Andy Messersmith | LAN | 6.73 | 197505170_PIT_LAN |
| Ken Holtzman | OAK | 4.62 | 197505170_OAK_NYA |
| Gaylord Perry | CLE | 4.1 | 197505180_CLE_CHA |
| Jim Hunter | NYA | 2.98 | 197505180_OAK_NYA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Stan Bahnsen | CHA | -4.2 | 197505190_BAL_CHA |
| Fritz Peterson | CLE | -2.3 | 197505170_CLE_CHA |
| Joe Coleman | DET | -1.98 | 197505190_DET_MIN |
| Burt Hooton | LAN | -1.57 | 197505180_PIT_LAN |
| Tom Griffin | HOU | -1.42 | 197505190_PHI_HOU |
Based on accumulated WAA for this season up to 1975-05-19.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.55 | Don Sutton | 81.7 | LAN |
| +002+ | 3 | Jim Palmer | 67.7 | BAL |
| +003+ | 2.94 | Vida Blue | 78 | OAK |
| +004+ | 2.86 | Nolan Ryan | 73.7 | ANA |
| +005+ | 2.69 | Steve Stone | 44.3 | CHN |
| +007+ | 2.61 | Andy Messersmith | 83 | LAN |
| +008+ | 2.59 | Randy Jones | 65 | SDN |
| +011+ | 2.46 | Jim Lonborg | 59.7 | PHI |
| +012+ | 2.44 | Tom Seaver | 64 | NYN |
| +013+ | 2.37 | Joe McIntosh | 54.7 | SDN |
| +014+ | 2.33 | Ken Holtzman | 70.7 | OAK |
| +015+ | 2.3 | Don Gullett | 66.3 | CIN |
| +016+ | 2.24 | Jim Hughes | 41.3 | MIN |
| +018+ | 1.91 | Steve Busby | 83.3 | KCA |
| +020+ | 1.88 | Woodie Fryman | 44.7 | WAS |
| +021+ | 1.81 | Jim Kern | 41.7 | CLE |
| +022+ | 1.71 | Pete Broberg | 62.3 | MIL |
| +023+ | 1.69 | Jim Barr | 63.7 | SFN |
| +027+ | 1.52 | Tom Underwood | 56 | PHI |
| +034+ | 1.4 | Jim Kaat | 66.3 | CHA |
| +038+ | 1.34 | Mike Norris | 16 | OAK |
| +040+ | 1.27 | Bill Hands | 46.7 | TEX |
| XXXXX | 1.24 | Steve Hargan | 43.7 | TEX |
| XXXXX | 1.23 | Frank Tanana | 35.7 | ANA |
| XXXXX | 1.12 | Phil Niekro | 63 | ATL |
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