| Starter | Tm | Tier | Game |
|---|---|---|---|
| Juan Marichal | SFN | 10.6 | 196505221_SFN_HOU |
| Sandy Koufax | LAN | 7.53 | 196505220_LAN_CHN |
| Gary Peters | CHA | 4.55 | 196505220_CHA_ANA |
| Camilo Pascual | MIN | 3.46 | 196505210_OAK_MIN |
| Bob Veale | PIT | 2.84 | 196505230_PIT_ATL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Al Jackson | NYN | -3.66 | 196505210_NYN_SLN |
| Dick Donovan | CLE | -3 | 196505232_BOS_CLE |
| Ray Sadecki | SLN | -2.89 | 196505230_NYN_SLN |
| Diego Segui | OAK | -2.23 | 196505210_OAK_MIN |
| Dave Morehead | BOS | -2.04 | 196505220_BOS_CLE |
Based on accumulated WAA for this season up to 1965-05-23.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 4.27 | Juan Marichal | 77.3 | SFN |
| +004+ | 2.66 | Claude Osteen | 73 | LAN |
| +006+ | 2.49 | Marcelino Lopez | 68 | ANA |
| +008+ | 2.48 | Sandy Koufax | 73.3 | LAN |
| +007+ | 2.48 | Johnny Podres | 53 | LAN |
| +009+ | 2.37 | John Buzhardt | 46.7 | CHA |
| +012+ | 2.25 | Jim Kaat | 68.7 | MIN |
| +017+ | 2.14 | Camilo Pascual | 67.3 | MIN |
| +018+ | 1.99 | Bob Gibson | 74.3 | SLN |
| +019+ | 1.94 | Turk Farrell | 48.7 | HOU |
| +022+ | 1.88 | Milt Pappas | 47.3 | BAL |
| +029+ | 1.61 | Joe Horlen | 57.3 | CHA |
| +030+ | 1.61 | Tommy John | 40.3 | CHA |
| +031+ | 1.59 | Jim Maloney | 45.7 | CIN |
| +033+ | 1.58 | Bob Buhl | 60 | CHN |
| +035+ | 1.53 | Bob Shaw | 29.3 | SFN |
| +038+ | 1.4 | Jim Lonborg | 48 | BOS |
| +043+ | 1.36 | Mel Stottlemyre | 61.3 | NYA |
| +050+ | 1.27 | Jim Brewer | 18 | LAN |
| XXXXX | 1.23 | Dave Boswell | 34.3 | MIN |
| XXXXX | 1.15 | Sonny Siebert | 37.3 | CLE |
| XXXXX | 1.04 | Chris Short | 63.3 | PHI |
| XXXXX | 1.03 | Ralph Terry | 55.3 | CLE |
| XXXXX | 0.99 | Dave Giusti | 47.3 | HOU |
| XXXXX | 0.99 | Fred Newman | 70 | ANA |
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