| Starter | Tm | Tier | Game |
|---|---|---|---|
| Andy Messersmith | LAN | 9.4 | 197506170_HOU_LAN |
| Nolan Ryan | ANA | 6.94 | 197506180_ANA_KCA |
| Jim Hunter | NYA | 3.87 | 197506190_NYA_DET |
| Jon Matlack | NYN | 2.78 | 197506171_NYN_WAS |
| Ken Holtzman | OAK | 2.76 | 197506172_OAK_MIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Johnny Odom | ATL | -3.72 | 197506180_ATL_CIN |
| Joe Coleman | DET | -2.64 | 197506180_BOS_DET |
| Fritz Peterson | CLE | -2.38 | 197506180_BAL_CLE |
| Bill Butler | MIN | -1.5 | 197506172_OAK_MIN |
| Rick Wise | BOS | -1.25 | 197506170_BOS_DET |
Based on accumulated WAA for this season up to 1975-06-19.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 5.79 | Jim Palmer | 126 | BAL |
| +002+ | 5.36 | Andy Messersmith | 145 | LAN |
| +003+ | 5.2 | Don Sutton | 135.7 | LAN |
| +004+ | 4.88 | Tom Seaver | 113.7 | NYN |
| +006+ | 4.71 | Randy Jones | 112 | SDN |
| +007+ | 4.13 | Don Gullett | 112 | CIN |
| +010+ | 3.19 | Jim Lonborg | 112.7 | PHI |
| +012+ | 3.06 | Phil Niekro | 114 | ATL |
| +017+ | 2.99 | Jim Kaat | 120.7 | CHA |
| +018+ | 2.97 | Steve Busby | 127.7 | KCA |
| +020+ | 2.85 | Jerry Reuss | 94.7 | PIT |
| +024+ | 2.77 | Bill Castro | 60.7 | MIL |
| +025+ | 2.69 | Bob Forsch | 98.7 | SLN |
| +026+ | 2.68 | Dennis Eckersley | 56.7 | CLE |
| +027+ | 2.61 | Ed Figueroa | 74 | ANA |
| +028+ | 2.59 | Jim Hunter | 141 | NYA |
| +029+ | 2.58 | Nolan Ryan | 120 | ANA |
| +031+ | 2.55 | Steve Rogers | 86.3 | WAS |
| +033+ | 2.52 | Gary Nolan | 103 | CIN |
| +039+ | 2.17 | Jim Barr | 103.7 | SFN |
| +043+ | 2.05 | Woodie Fryman | 83 | WAS |
| +045+ | 2 | John Montefusco | 87 | SFN |
| +046+ | 1.99 | Joe McIntosh | 85 | SDN |
| +051+ | 1.85 | Rudy May | 81.7 | NYA |
| +058+ | 1.66 | Larry Demery | 39 | PIT |
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