| Starter | Tm | Tier | Game |
|---|---|---|---|
| Juan Marichal | SFN | 11.8 | 196506190_NYN_SFN |
| Bob Veale | PIT | 5.13 | 196506180_PIT_HOU |
| Jim Maloney | CIN | 4.03 | 196506190_CHN_CIN |
| Milt Pappas | BAL | 3.36 | 196506190_TEX_BAL |
| Joe Horlen | CHA | 3.34 | 196506170_MIN_CHA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ray Sadecki | SLN | -4.31 | 196506190_SLN_ATL |
| Bob Hendley | CHN | -3.21 | 196506170_CHN_HOU |
| Galen Cisco | NYN | -2.61 | 196506180_NYN_SFN |
| Buster Narum | TEX | -1.87 | 196506190_TEX_BAL |
| Diego Segui | OAK | -0.59 | 196506190_OAK_DET |
Based on accumulated WAA for this season up to 1965-06-19.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 5.68 | Juan Marichal | 125 | SFN |
| +003+ | 4.17 | Sandy Koufax | 119.3 | LAN |
| +004+ | 4.08 | Jim Kaat | 111.7 | MIN |
| +006+ | 3.72 | Don Drysdale | 126.7 | LAN |
| +007+ | 3.71 | Vern Law | 87 | PIT |
| +010+ | 3.47 | Milt Pappas | 91.3 | BAL |
| +015+ | 2.97 | Claude Osteen | 122.7 | LAN |
| +019+ | 2.68 | Joe Horlen | 95.3 | CHA |
| +021+ | 2.53 | Marcelino Lopez | 99 | ANA |
| +022+ | 2.49 | Mel Stottlemyre | 109 | NYA |
| +030+ | 2.28 | Turk Farrell | 85.7 | HOU |
| +037+ | 2.09 | Wade Blasingame | 97.3 | ATL |
| +038+ | 2.08 | Jim Maloney | 91.3 | CIN |
| +041+ | 2.01 | Bob Veale | 109.3 | PIT |
| +045+ | 1.93 | Sam McDowell | 86.7 | CLE |
| +047+ | 1.88 | Bob Gibson | 126 | SLN |
| +052+ | 1.8 | Johnny Podres | 83 | LAN |
| +060+ | 1.68 | George Brunet | 54.3 | ANA |
| +063+ | 1.62 | Ralph Terry | 90.3 | CLE |
| +066+ | 1.58 | Sonny Siebert | 65.3 | CLE |
| +076+ | 1.33 | Bill Monbouquette | 101 | BOS |
| +078+ | 1.28 | Bob Shaw | 66.3 | SFN |
| XXXXX | 1.23 | John Buzhardt | 70.3 | CHA |
| XXXXX | 1.21 | Dave Boswell | 49.7 | MIN |
| XXXXX | 1.13 | Camilo Pascual | 99 | MIN |
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