| Starter | Tm | Tier | Game |
|---|---|---|---|
| Andy Messersmith | LAN | 7.91 | 197505310_LAN_CHN |
| Tom Seaver | NYN | 6.69 | 197505310_SDN_NYN |
| Nolan Ryan | ANA | 6.1 | 197506010_BAL_ANA |
| Bert Blyleven | MIN | 5.75 | 197505310_BOS_MIN |
| Gaylord Perry | CLE | 4.19 | 197506010_CLE_OAK |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Stan Bahnsen | CHA | -4.09 | 197506020_CHA_BOS |
| J.R. Richard | HOU | -2.38 | 197505310_HOU_PHI |
| Roric Harrison | ATL | -2.2 | 197505310_ATL_PIT |
| Burt Hooton | LAN | -1.8 | 197506010_LAN_CHN |
| Lerrin LaGrow | DET | -1.36 | 197506012_CHA_DET |
Based on accumulated WAA for this season up to 1975-06-02.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 4.72 | Don Sutton | 105.7 | LAN |
| +002+ | 4.1 | Jim Palmer | 91 | BAL |
| +003+ | 3.61 | Randy Jones | 81 | SDN |
| +004+ | 3.4 | Andy Messersmith | 110 | LAN |
| +008+ | 2.87 | Steve Stone | 45.3 | CHN |
| +010+ | 2.79 | Tom Seaver | 86.7 | NYN |
| +012+ | 2.62 | Jim Lonborg | 80.7 | PHI |
| +016+ | 2.56 | Nolan Ryan | 95.7 | ANA |
| +017+ | 2.55 | Dennis Eckersley | 32.3 | CLE |
| +018+ | 2.53 | Phil Niekro | 90 | ATL |
| +019+ | 2.51 | Don Gullett | 85.3 | CIN |
| +021+ | 2.37 | Jim Kaat | 88.3 | CHA |
| +020+ | 2.37 | Joe McIntosh | 73.7 | SDN |
| +024+ | 2.2 | Jim Barr | 81.7 | SFN |
| +028+ | 1.96 | Gary Nolan | 76.3 | CIN |
| +030+ | 1.9 | Tom Underwood | 69.7 | PHI |
| +031+ | 1.86 | Woodie Fryman | 63 | WAS |
| +035+ | 1.73 | Vida Blue | 102 | OAK |
| +039+ | 1.64 | Jim Hughes | 61 | MIN |
| +042+ | 1.59 | Steve Busby | 93.7 | KCA |
| +045+ | 1.51 | John Montefusco | 58.3 | SFN |
| +046+ | 1.47 | Steve Rogers | 63.3 | WAS |
| +051+ | 1.43 | Jim Hunter | 105 | NYA |
| +054+ | 1.4 | Bill Hands | 62 | TEX |
| +061+ | 1.35 | Alan Foster | 41.3 | SDN |
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