| Starter | Tm | Tier | Game |
|---|---|---|---|
| Chris Short | PHI | 4.44 | 196505200_PHI_SLN |
| Jim Maloney | CIN | 3.62 | 196505190_PIT_CIN |
| Joe Horlen | CHA | 3.05 | 196505180_CHA_OAK |
| Bob Friend | PIT | 1.97 | 196505200_PIT_CIN |
| Bob Gibson | SLN | 1.56 | 196505200_PHI_SLN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ray Sadecki | SLN | -3.54 | 196505180_PHI_SLN |
| Dave Morehead | BOS | -2.4 | 196505180_BOS_NYA |
| Galen Cisco | NYN | -2.09 | 196505190_NYN_ATL |
| Orlando Pena | OAK | -1.32 | 196505180_CHA_OAK |
| Art Mahaffey | PHI | -1.12 | 196505180_PHI_SLN |
Based on accumulated WAA for this season up to 1965-05-20.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.44 | Juan Marichal | 68.3 | SFN |
| +003+ | 2.71 | Claude Osteen | 73 | LAN |
| +004+ | 2.52 | Marcelino Lopez | 61.3 | ANA |
| +007+ | 2.48 | Jim Kaat | 64.3 | MIN |
| +009+ | 2.32 | John Buzhardt | 46.7 | CHA |
| +012+ | 2.15 | Johnny Podres | 46 | LAN |
| +015+ | 2 | Bob Gibson | 74.3 | SLN |
| +016+ | 1.99 | Sandy Koufax | 64.3 | LAN |
| +020+ | 1.75 | Turk Farrell | 41.7 | HOU |
| +021+ | 1.72 | Joe Horlen | 54.3 | CHA |
| +026+ | 1.64 | Camilo Pascual | 59.3 | MIN |
| +028+ | 1.59 | Milt Pappas | 39.3 | BAL |
| +029+ | 1.58 | Jim Maloney | 45.7 | CIN |
| +034+ | 1.53 | Ralph Terry | 51.7 | CLE |
| +035+ | 1.51 | Bob Shaw | 29.3 | SFN |
| +037+ | 1.48 | Bob Buhl | 53 | CHN |
| +040+ | 1.34 | Mel Stottlemyre | 61.3 | NYA |
| XXXXX | 1.21 | Dave Boswell | 34.3 | MIN |
| XXXXX | 1.21 | Robin Roberts | 60 | BAL |
| XXXXX | 1.2 | Jack Fisher | 57 | NYN |
| XXXXX | 1.13 | Sonny Siebert | 37.3 | CLE |
| XXXXX | 1.09 | Tommy John | 32.3 | CHA |
| XXXXX | 1.09 | Don Drysdale | 68.7 | LAN |
| XXXXX | 1.02 | Jim Lonborg | 39 | BOS |
| XXXXX | 0.97 | Chris Short | 63 | PHI |
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