| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jim Palmer | BAL | 11.18 | 197506160_BAL_CLE |
| Tom Seaver | NYN | 8.68 | 197506150_NYN_SDN |
| Nolan Ryan | ANA | 7.03 | 197506140_ANA_MIL |
| Don Sutton | LAN | 6.97 | 197506160_HOU_LAN |
| Phil Niekro | ATL | 4.18 | 197506160_ATL_CIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jim Slaton | MIL | -3.92 | 197506152_ANA_MIL |
| Stan Bahnsen | CHA | -3.79 | 197506150_CHA_NYA |
| Roric Harrison | CLE | -3.25 | 197506140_CLE_TEX |
| Tom Griffin | HOU | -1.64 | 197506140_HOU_SLN |
| Burt Hooton | LAN | -1.41 | 197506140_PHI_LAN |
Based on accumulated WAA for this season up to 1975-06-16.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 5.71 | Jim Palmer | 126 | BAL |
| +002+ | 5.11 | Don Sutton | 135.7 | LAN |
| +003+ | 4.89 | Tom Seaver | 113.7 | NYN |
| +004+ | 4.72 | Andy Messersmith | 136 | LAN |
| +005+ | 4.44 | Jim Lonborg | 107.7 | PHI |
| +006+ | 4.35 | Randy Jones | 104 | SDN |
| +007+ | 4.06 | Don Gullett | 112 | CIN |
| +013+ | 3.14 | Nolan Ryan | 118 | ANA |
| +016+ | 2.97 | Phil Niekro | 114 | ATL |
| +019+ | 2.84 | Gary Nolan | 97.7 | CIN |
| +021+ | 2.78 | Jim Kaat | 114.7 | CHA |
| +023+ | 2.64 | Dennis Eckersley | 56.7 | CLE |
| +025+ | 2.6 | Bob Forsch | 98.7 | SLN |
| +028+ | 2.55 | Steve Busby | 118.7 | KCA |
| +029+ | 2.54 | Bill Castro | 53.7 | MIL |
| +032+ | 2.42 | Steve Rogers | 79.3 | WAS |
| +036+ | 2.27 | Joe McIntosh | 84.3 | SDN |
| +038+ | 2.18 | Jim Umbarger | 44 | TEX |
| +040+ | 2.16 | Jim Hunter | 132 | NYA |
| +041+ | 2.1 | Steve Stone | 62.3 | CHN |
| +042+ | 2.1 | Jim Barr | 103.7 | SFN |
| +043+ | 2.06 | Ed Figueroa | 66 | ANA |
| +044+ | 2.02 | Jerry Reuss | 85.7 | PIT |
| +045+ | 2.01 | Woodie Fryman | 77 | WAS |
| +051+ | 1.8 | Rudy May | 81.7 | NYA |
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