| Starter | Tm | Tier | Game |
|---|---|---|---|
| Andy Messersmith | LAN | 9.16 | 197506090_WAS_LAN |
| Nolan Ryan | ANA | 8.27 | 197506100_ANA_NYA |
| Tom Seaver | NYN | 7.18 | 197506100_NYN_SFN |
| Jim Hunter | NYA | 3.05 | 197506090_ANA_NYA |
| Gaylord Perry | CLE | 2.89 | 197506110_CLE_KCA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Stan Bahnsen | CHA | -3.52 | 197506110_BOS_CHA |
| Jim Slaton | MIL | -2.94 | 197506110_OAK_MIL |
| Roric Harrison | CLE | -2.64 | 197506090_MIN_CLE |
| Johnny Odom | ATL | -2.04 | 197506090_SLN_ATL |
| Tom Griffin | HOU | -1.91 | 197506090_CHN_HOU |
Based on accumulated WAA for this season up to 1975-06-11.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 5.11 | Jim Palmer | 110.3 | BAL |
| +002+ | 5 | Andy Messersmith | 128 | LAN |
| +003+ | 4.43 | Don Sutton | 118.7 | LAN |
| +004+ | 4.04 | Tom Seaver | 104.7 | NYN |
| +005+ | 3.79 | Jim Lonborg | 98.7 | PHI |
| +006+ | 3.65 | Don Gullett | 103.3 | CIN |
| +007+ | 3.61 | Randy Jones | 95 | SDN |
| +010+ | 3.08 | Phil Niekro | 99 | ATL |
| +012+ | 3 | Nolan Ryan | 110 | ANA |
| +015+ | 2.78 | Joe McIntosh | 82.7 | SDN |
| +020+ | 2.62 | Steve Stone | 56.7 | CHN |
| +022+ | 2.55 | Bill Castro | 46.7 | MIL |
| +027+ | 2.33 | Jim Kaat | 105.7 | CHA |
| +029+ | 2.28 | Rudy May | 78 | NYA |
| +030+ | 2.25 | Gary Nolan | 91.7 | CIN |
| +034+ | 2.07 | Steve Rogers | 72.3 | WAS |
| +033+ | 2.07 | Dennis Eckersley | 48 | CLE |
| +036+ | 2.04 | Bob Forsch | 90.7 | SLN |
| +042+ | 1.85 | Steve Busby | 108.7 | KCA |
| +046+ | 1.77 | Jim Barr | 95.7 | SFN |
| +056+ | 1.62 | Ken Holtzman | 101.7 | OAK |
| +061+ | 1.56 | Bruce Kison | 83.3 | PIT |
| +062+ | 1.55 | Vida Blue | 108.3 | OAK |
| +064+ | 1.53 | Bill Hands | 64.7 | TEX |
| +065+ | 1.5 | Jerry Reuss | 77.7 | PIT |
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