| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jim Palmer | BAL | 12.06 | 197507040_BAL_NYA |
| Andy Messersmith | LAN | 11.92 | 197507040_SFN_LAN |
| Tom Seaver | NYN | 11.7 | 197507040_NYN_PHI |
| Jim Hunter | NYA | 5.16 | 197507040_BAL_NYA |
| Nolan Ryan | ANA | 4.2 | 197507030_ANA_MIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Joe Coleman | DET | -6.2 | 197507030_BAL_DET |
| Stan Bahnsen | OAK | -3.76 | 197507050_ANA_OAK |
| Roric Harrison | CLE | -2.43 | 197507050_BOS_CLE |
| Jim Slaton | MIL | -2.25 | 197507030_BOS_MIL |
| Burt Hooton | LAN | -2.07 | 197507050_SFN_LAN |
Based on accumulated WAA for this season up to 1975-07-05.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 6.66 | Andy Messersmith | 177 | LAN |
| +002+ | 6.36 | Jim Palmer | 160 | BAL |
| +003+ | 6.16 | Tom Seaver | 146.3 | NYN |
| +004+ | 5.9 | Randy Jones | 137 | SDN |
| +006+ | 4.92 | Don Sutton | 164 | LAN |
| +010+ | 4.09 | Phil Niekro | 143 | ATL |
| +011+ | 4.01 | Ed Figueroa | 104 | ANA |
| +012+ | 3.93 | Don Gullett | 112 | CIN |
| +013+ | 3.92 | Steve Busby | 161.7 | KCA |
| +014+ | 3.82 | Jerry Reuss | 121 | PIT |
| +017+ | 3.35 | Bob Forsch | 127.7 | SLN |
| +018+ | 3.31 | Jim Kaat | 149 | CHA |
| +024+ | 2.99 | Jim Hunter | 166.3 | NYA |
| +025+ | 2.97 | Jim Barr | 117 | SFN |
| +032+ | 2.78 | Dennis Eckersley | 77.7 | CLE |
| +033+ | 2.76 | Steve Rogers | 108.3 | WAS |
| +045+ | 2.49 | Brent Strom | 44.3 | SDN |
| +044+ | 2.49 | John Montefusco | 109 | SFN |
| +047+ | 2.47 | Ken Holtzman | 146.7 | OAK |
| +049+ | 2.3 | Bill Castro | 67.7 | MIL |
| +056+ | 2.09 | Larry Demery | 54 | PIT |
| +059+ | 1.95 | Gary Nolan | 121 | CIN |
| +064+ | 1.85 | Steve Stone | 95.3 | CHN |
| +072+ | 1.76 | Nolan Ryan | 134.3 | ANA |
| +074+ | 1.74 | Tom Underwood | 116.3 | PHI |
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