| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jim Palmer | BAL | 8.01 | 197505010_BAL_NYA |
| Gaylord Perry | CLE | 7.37 | 197504300_CLE_BOS |
| Tom Seaver | NYN | 6.56 | 197504290_NYN_CHN |
| Andy Messersmith | LAN | 5.22 | 197504290_ATL_LAN |
| Luis Tiant | BOS | 3.23 | 197504300_CLE_BOS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Stan Bahnsen | CHA | -6.73 | 197504300_CHA_TEX |
| Jim Bibby | TEX | -3.31 | 197504300_CHA_TEX |
| Paul Splittorff | KCA | -2.39 | 197504290_ANA_KCA |
| J.R. Richard | HOU | -2.08 | 197504290_HOU_SDN |
| Mike Torrez | BAL | -1.91 | 197504300_BAL_NYA |
Based on accumulated WAA for this season up to 1975-05-01.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 1.72 | Pete Broberg | 42.7 | MIL |
| +003+ | 1.7 | Woodie Fryman | 24.7 | WAS |
| +004+ | 1.68 | Tom Seaver | 40 | NYN |
| +005+ | 1.59 | Mickey Lolich | 32 | DET |
| +006+ | 1.56 | Jim Palmer | 40.7 | BAL |
| +007+ | 1.56 | Joe McIntosh | 31.7 | SDN |
| +010+ | 1.53 | Don Sutton | 45.7 | LAN |
| +011+ | 1.49 | Steve Stone | 30.7 | CHN |
| +012+ | 1.48 | Don Gullett | 44.7 | CIN |
| +013+ | 1.48 | Jim Lonborg | 37.7 | PHI |
| +014+ | 1.47 | Ken Holtzman | 40 | OAK |
| +017+ | 1.36 | Randy Jones | 37 | SDN |
| +018+ | 1.34 | Mike Norris | 16 | OAK |
| +021+ | 1.31 | Dave Roberts | 31 | HOU |
| XXXXX | 1.25 | Gaylord Perry | 51.3 | CLE |
| XXXXX | 1.23 | Steve Busby | 41 | KCA |
| XXXXX | 1.12 | Vida Blue | 43.3 | OAK |
| XXXXX | 1.04 | Jim Rooker | 18 | PIT |
| XXXXX | 0.9 | Carl Morton | 48.3 | ATL |
| XXXXX | 0.81 | Roric Harrison | 19.7 | ATL |
| XXXXX | 0.78 | Rudy May | 27 | NYA |
| XXXXX | 0.76 | Dave Hamilton | 14 | OAK |
| XXXXX | 0.76 | Pat Dobson | 34.3 | NYA |
| XXXXX | 0.75 | Andy Messersmith | 49 | LAN |
| XXXXX | 0.73 | Doc Medich | 39 | NYA |
_