| Starter | Tm | Tier | Game |
|---|---|---|---|
| Juan Marichal | SFN | 11.8 | 196506190_NYN_SFN |
| Sandy Koufax | LAN | 8.57 | 196506201_NYN_LAN |
| Bob Veale | PIT | 5.13 | 196506180_PIT_HOU |
| Jim Maloney | CIN | 4.03 | 196506190_CHN_CIN |
| Milt Pappas | BAL | 3.36 | 196506190_TEX_BAL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ray Sadecki | SLN | -4.31 | 196506190_SLN_ATL |
| Galen Cisco | NYN | -2.61 | 196506180_NYN_SFN |
| Dave Wickersham | DET | -2.2 | 196506202_OAK_DET |
| Bo Belinsky | PHI | -2.08 | 196506202_PHI_HOU |
| Buster Narum | TEX | -1.87 | 196506190_TEX_BAL |
Based on accumulated WAA for this season up to 1965-06-20.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 5.59 | Juan Marichal | 125 | SFN |
| +002+ | 4.74 | Sandy Koufax | 128.3 | LAN |
| +004+ | 4.19 | Jim Kaat | 112.7 | MIN |
| +008+ | 3.88 | Don Drysdale | 135.7 | LAN |
| +011+ | 3.68 | Vern Law | 87 | PIT |
| +012+ | 3.49 | Milt Pappas | 91.3 | BAL |
| +016+ | 3.01 | Claude Osteen | 122.7 | LAN |
| +020+ | 2.73 | Sam McDowell | 95.7 | CLE |
| +023+ | 2.69 | Joe Horlen | 95.3 | CHA |
| +026+ | 2.41 | Marcelino Lopez | 104.3 | ANA |
| +027+ | 2.4 | Mel Stottlemyre | 115 | NYA |
| +030+ | 2.31 | Turk Farrell | 85.7 | HOU |
| +042+ | 2.12 | Wade Blasingame | 97.3 | ATL |
| +044+ | 2.1 | Jim Maloney | 91.3 | CIN |
| +051+ | 1.97 | Bob Veale | 109.3 | PIT |
| +052+ | 1.92 | Bob Gibson | 126 | SLN |
| +053+ | 1.9 | Bob Shaw | 76.7 | SFN |
| +057+ | 1.83 | Johnny Podres | 83 | LAN |
| +060+ | 1.71 | George Brunet | 54.3 | ANA |
| +064+ | 1.64 | Ralph Terry | 90.3 | CLE |
| +066+ | 1.6 | Sonny Siebert | 65.3 | CLE |
| +069+ | 1.53 | Bobby Bolin | 47.7 | SFN |
| +076+ | 1.35 | Bill Monbouquette | 101 | BOS |
| XXXXX | 1.24 | John Buzhardt | 70.3 | CHA |
| XXXXX | 1.16 | Curt Simmons | 101.3 | SLN |
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