| Starter | Tm | Tier | Game |
|---|---|---|---|
| Nolan Ryan | ANA | 7.48 | 197506060_MIL_ANA |
| Tom Seaver | NYN | 7.01 | 197506050_HOU_NYN |
| Phil Niekro | ATL | 4.07 | 197506060_ATL_NYN |
| Jim Hunter | NYA | 3.58 | 197506050_NYA_MIN |
| Gaylord Perry | CLE | 3.32 | 197506070_TEX_CLE |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Stan Bahnsen | CHA | -3.39 | 197506070_NYA_CHA |
| Jim Slaton | MIL | -2.39 | 197506060_MIL_ANA |
| Tom Griffin | HOU | -2.28 | 197506050_HOU_NYN |
| Burt Hooton | LAN | -2.04 | 197506060_LAN_PHI |
| Paul Splittorff | KCA | -1.64 | 197506060_KCA_BAL |
Based on accumulated WAA for this season up to 1975-06-07.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 4.6 | Don Sutton | 113.7 | LAN |
| +002+ | 4.47 | Jim Palmer | 101.3 | BAL |
| +003+ | 4.2 | Andy Messersmith | 119 | LAN |
| +004+ | 3.36 | Tom Seaver | 95.7 | NYN |
| +005+ | 3.34 | Nolan Ryan | 104.7 | ANA |
| +006+ | 3.25 | Randy Jones | 86 | SDN |
| +007+ | 3.19 | Jim Lonborg | 89.7 | PHI |
| +008+ | 3.14 | Phil Niekro | 99 | ATL |
| +009+ | 3.09 | Don Gullett | 94.3 | CIN |
| +018+ | 2.55 | Bill Castro | 46.7 | MIL |
| +020+ | 2.5 | Steve Stone | 50.7 | CHN |
| +023+ | 2.42 | Joe McIntosh | 73.7 | SDN |
| +027+ | 2.07 | Jim Kaat | 96.7 | CHA |
| +028+ | 2.06 | Tom Underwood | 76.3 | PHI |
| +030+ | 2.03 | Dennis Eckersley | 39 | CLE |
| +035+ | 1.87 | Woodie Fryman | 63 | WAS |
| +037+ | 1.84 | Bob Forsch | 83.7 | SLN |
| +045+ | 1.72 | Jim Barr | 87.7 | SFN |
| +046+ | 1.71 | Rudy May | 69 | NYA |
| +047+ | 1.69 | Gary Nolan | 82.7 | CIN |
| +049+ | 1.66 | Bruce Kison | 77.3 | PIT |
| +050+ | 1.63 | Vida Blue | 108 | OAK |
| +060+ | 1.48 | Steve Rogers | 63.3 | WAS |
| +063+ | 1.38 | Alan Foster | 41.3 | SDN |
| +064+ | 1.37 | Bill Hands | 62 | TEX |
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