| Starter | Tm | Tier | Game |
|---|---|---|---|
| Juan Marichal | SFN | 11.8 | 196506190_NYN_SFN |
| Sandy Koufax | LAN | 8.57 | 196506201_NYN_LAN |
| Jim Maloney | CIN | 4.03 | 196506190_CHN_CIN |
| Milt Pappas | BAL | 3.36 | 196506190_TEX_BAL |
| Camilo Pascual | MIN | 2.22 | 196506201_MIN_NYA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Al Jackson | NYN | -5.15 | 196506210_NYN_LAN |
| Ray Sadecki | SLN | -4.31 | 196506190_SLN_ATL |
| 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 1965-06-21.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 5.57 | Juan Marichal | 125 | SFN |
| +002+ | 4.72 | Sandy Koufax | 128.3 | LAN |
| +004+ | 4.18 | Jim Kaat | 112.7 | MIN |
| +008+ | 3.86 | Don Drysdale | 135.7 | LAN |
| +011+ | 3.67 | Vern Law | 87 | PIT |
| +012+ | 3.53 | Claude Osteen | 131.7 | LAN |
| +013+ | 3.48 | Milt Pappas | 91.3 | BAL |
| +017+ | 2.82 | Turk Farrell | 94.7 | HOU |
| +022+ | 2.71 | Sam McDowell | 95.7 | CLE |
| +024+ | 2.68 | Joe Horlen | 95.3 | CHA |
| +027+ | 2.4 | Marcelino Lopez | 104.3 | ANA |
| +028+ | 2.38 | Mel Stottlemyre | 115 | NYA |
| +043+ | 2.11 | Wade Blasingame | 97.3 | ATL |
| +045+ | 2.08 | Jim Maloney | 91.3 | CIN |
| +051+ | 1.96 | Bob Veale | 109.3 | PIT |
| +052+ | 1.9 | Bob Gibson | 126 | SLN |
| +055+ | 1.89 | Bob Shaw | 76.7 | SFN |
| +057+ | 1.82 | Johnny Podres | 83 | LAN |
| +060+ | 1.7 | George Brunet | 54.3 | ANA |
| +063+ | 1.63 | Ralph Terry | 90.3 | CLE |
| +064+ | 1.59 | Sonny Siebert | 65.3 | CLE |
| +070+ | 1.53 | Bobby Bolin | 47.7 | SFN |
| +076+ | 1.34 | Bill Monbouquette | 101 | BOS |
| XXXXX | 1.23 | John Buzhardt | 70.3 | CHA |
| XXXXX | 1.15 | Curt Simmons | 101.3 | SLN |
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