| Starter | Tm | Tier | Game |
|---|---|---|---|
| Nolan Ryan | ANA | 6.11 | 197505080_ANA_OAK |
| Ken Holtzman | OAK | 4.45 | 197505100_NYA_OAK |
| Gaylord Perry | CLE | 3.49 | 197505090_CHA_CLE |
| Jim Rooker | PIT | 3.17 | 197505100_LAN_PIT |
| Phil Niekro | ATL | 2.34 | 197505100_PHI_ATL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Burt Hooton | LAN | -2.77 | 197505090_LAN_PIT |
| John D'Acquisto | SFN | -2.54 | 197505090_SFN_SLN |
| J.R. Richard | HOU | -1.91 | 197505100_HOU_WAS |
| Roric Harrison | ATL | -1.75 | 197505090_PHI_ATL |
| Rick Reuschel | CHN | -1.36 | 197505100_SDN_CHN |
Based on accumulated WAA for this season up to 1975-05-10.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 2.7 | Don Sutton | 63.7 | LAN |
| +002+ | 2.63 | Vida Blue | 62.3 | OAK |
| +003+ | 2.2 | Randy Jones | 50 | SDN |
| +004+ | 2.1 | Jim Palmer | 49.7 | BAL |
| +005+ | 2.05 | Joe McIntosh | 45.7 | SDN |
| +006+ | 2.04 | Jim Lonborg | 52.7 | PHI |
| +008+ | 2.01 | Pete Broberg | 53.7 | MIL |
| +009+ | 1.94 | Woodie Fryman | 37.7 | WAS |
| +011+ | 1.91 | Tom Seaver | 48 | NYN |
| +010+ | 1.91 | Don Gullett | 57.7 | CIN |
| +016+ | 1.7 | Andy Messersmith | 67 | LAN |
| +020+ | 1.6 | Nolan Ryan | 56 | ANA |
| +021+ | 1.51 | Steve Stone | 30.7 | CHN |
| +022+ | 1.5 | Ken Holtzman | 61.3 | OAK |
| +029+ | 1.37 | Steve Hargan | 34.7 | TEX |
| +031+ | 1.34 | Pete Falcone | 37 | SFN |
| +032+ | 1.32 | Mike Norris | 16 | OAK |
| +033+ | 1.31 | Phil Niekro | 53.7 | ATL |
| XXXXX | 1.19 | Bill Hands | 37.7 | TEX |
| XXXXX | 1.07 | Doug Rau | 59 | LAN |
| XXXXX | 1.06 | Jim Kaat | 52.3 | CHA |
| XXXXX | 1 | Jim Barr | 48.3 | SFN |
| XXXXX | 0.97 | Ken Brett | 22 | PIT |
| XXXXX | 0.91 | Bert Blyleven | 55.3 | MIN |
| XXXXX | 0.91 | Carl Morton | 56.3 | ATL |
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