| Starter | Tm | Tier | Game |
|---|---|---|---|
| Juan Marichal | SFN | 11.37 | 196505161_HOU_SFN |
| Sandy Koufax | LAN | 7.44 | 196505170_LAN_HOU |
| Chris Short | PHI | 4.73 | 196505160_ATL_PHI |
| Gary Peters | CHA | 4.11 | 196505170_CHA_OAK |
| Camilo Pascual | MIN | 3.52 | 196505170_MIN_ANA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Diego Segui | OAK | -2.43 | 196505161_MIN_OAK |
| Buster Narum | TEX | -2.09 | 196505150_CLE_TEX |
| Earl Wilson | BOS | -1.89 | 196505161_DET_BOS |
| Galen Cisco | NYN | -1.52 | 196505150_CIN_NYN |
| Bo Belinsky | PHI | -1.38 | 196505170_PHI_SLN |
Based on accumulated WAA for this season up to 1965-05-17.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.43 | Juan Marichal | 68.3 | SFN |
| +003+ | 2.79 | Claude Osteen | 67.7 | LAN |
| +006+ | 2.33 | John Buzhardt | 46.7 | CHA |
| +008+ | 2.22 | Johnny Podres | 46 | LAN |
| +011+ | 2.09 | Sandy Koufax | 64.3 | LAN |
| +014+ | 1.95 | Chris Short | 62.3 | PHI |
| +016+ | 1.89 | Jim Kaat | 56.7 | MIN |
| +017+ | 1.88 | Marcelino Lopez | 53 | ANA |
| +019+ | 1.85 | Joe Horlen | 46 | CHA |
| +024+ | 1.7 | Turk Farrell | 40.3 | HOU |
| +022+ | 1.7 | Camilo Pascual | 59.3 | MIN |
| +025+ | 1.69 | Bob Gibson | 65.3 | SLN |
| +030+ | 1.57 | Milt Pappas | 39.3 | BAL |
| +031+ | 1.56 | Ralph Terry | 51.7 | CLE |
| +034+ | 1.34 | Mel Stottlemyre | 53 | NYA |
| XXXXX | 1.21 | Jim Maloney | 38.7 | CIN |
| XXXXX | 1.19 | Jack Fisher | 57 | NYN |
| XXXXX | 1.17 | Don Drysdale | 68.3 | LAN |
| XXXXX | 1.11 | Hank Aguirre | 36.3 | DET |
| XXXXX | 1.07 | Tommy John | 32 | CHA |
| XXXXX | 1.04 | Tracy Stallard | 45 | SLN |
| XXXXX | 0.95 | Dave Boswell | 28.3 | MIN |
| XXXXX | 0.9 | Bob Buhl | 46 | CHN |
| XXXXX | 0.89 | Bob Shaw | 22.3 | SFN |
| XXXXX | 0.83 | Dave Giusti | 40 | HOU |
_