| Starter | Tm | Tier | Game |
|---|---|---|---|
| Andy Messersmith | LAN | 9.16 | 197506090_WAS_LAN |
| Jim Palmer | BAL | 8.78 | 197506080_KCA_BAL |
| Nolan Ryan | ANA | 8.27 | 197506100_ANA_NYA |
| Tom Seaver | NYN | 7.18 | 197506100_NYN_SFN |
| Jim Hunter | NYA | 3.05 | 197506090_ANA_NYA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roric Harrison | CLE | -2.64 | 197506090_MIN_CLE |
| Joe Coleman | DET | -2.59 | 197506080_DET_OAK |
| Johnny Odom | ATL | -2.04 | 197506090_SLN_ATL |
| Wilbur Wood | CHA | -1.99 | 197506100_MIL_CHA |
| Jim Bibby | TEX | -1.99 | 197506081_TEX_CLE |
Based on accumulated WAA for this season up to 1975-06-10.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 5.11 | Jim Palmer | 110.3 | BAL |
| +002+ | 4.97 | Andy Messersmith | 128 | LAN |
| +003+ | 4.41 | Don Sutton | 118.7 | LAN |
| +004+ | 4.02 | Tom Seaver | 104.7 | NYN |
| +005+ | 3.75 | Jim Lonborg | 98.7 | PHI |
| +006+ | 3.59 | Randy Jones | 95 | SDN |
| +008+ | 3.09 | Don Gullett | 94.3 | CIN |
| +009+ | 3.05 | Phil Niekro | 99 | ATL |
| +013+ | 2.96 | Nolan Ryan | 110 | ANA |
| +017+ | 2.76 | Joe McIntosh | 82.7 | SDN |
| +021+ | 2.61 | Steve Stone | 56.7 | CHN |
| +024+ | 2.55 | Bill Castro | 46.7 | MIL |
| +027+ | 2.4 | Jim Kaat | 105.7 | CHA |
| +030+ | 2.23 | Gary Nolan | 91.7 | CIN |
| +032+ | 2.07 | Tom Underwood | 76.3 | PHI |
| +033+ | 2.05 | Dennis Eckersley | 48 | CLE |
| +034+ | 2.04 | Steve Rogers | 72.3 | WAS |
| +041+ | 1.83 | Bob Forsch | 83.7 | SLN |
| +042+ | 1.83 | Steve Busby | 108.7 | KCA |
| +045+ | 1.75 | Jim Barr | 95.7 | SFN |
| +047+ | 1.7 | Rudy May | 69 | NYA |
| +054+ | 1.65 | Bruce Kison | 77.3 | PIT |
| +057+ | 1.6 | Ken Holtzman | 101.7 | OAK |
| +062+ | 1.53 | Vida Blue | 108.3 | OAK |
| +063+ | 1.52 | Bill Hands | 64.7 | TEX |
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