| Starter | Tm | Tier | Game |
|---|---|---|---|
| Juan Marichal | SFN | 14.32 | 196509170_SFN_ATL |
| Sandy Koufax | LAN | 11.07 | 196509180_LAN_SLN |
| Jim Bunning | PHI | 3.42 | 196509180_PHI_PIT |
| Jim Kaat | MIN | 1.66 | 196509180_TEX_MIN |
| Pete Richert | TEX | 1.61 | 196509170_TEX_MIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Phil Ortega | TEX | -2.75 | 196509180_TEX_MIN |
| John Tsitouris | CIN | -1.45 | 196509160_CIN_NYN |
| Al Jackson | NYN | -1.37 | 196509160_CIN_NYN |
| Jim Lonborg | BOS | -1.35 | 196509170_OAK_BOS |
| Lew Burdette | PHI | -1.14 | 196509160_ATL_PHI |
Based on accumulated WAA for this season up to 1965-09-18.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 10.32 | Sandy Koufax | 306.7 | LAN |
| +002+ | 10.11 | Juan Marichal | 274.3 | SFN |
| +008+ | 7.45 | Sam McDowell | 239.3 | CLE |
| +010+ | 6.8 | Vern Law | 217.3 | PIT |
| +015+ | 5.72 | Mel Stottlemyre | 266 | NYA |
| +018+ | 5.45 | Bob Shaw | 215 | SFN |
| +019+ | 5.36 | Jim Maloney | 233.3 | CIN |
| +023+ | 5.23 | Jim Bunning | 264 | PHI |
| +026+ | 5 | Sonny Siebert | 161.7 | CLE |
| +034+ | 4.58 | Milt Pappas | 200.7 | BAL |
| +041+ | 4.14 | Pete Richert | 172 | TEX |
| +048+ | 3.74 | Bob Gibson | 267.3 | SLN |
| +049+ | 3.67 | Jim Kaat | 242.7 | MIN |
| +051+ | 3.6 | Claude Osteen | 257.7 | LAN |
| +056+ | 3.34 | George Brunet | 176.3 | ANA |
| +059+ | 3.23 | Marcelino Lopez | 215.3 | ANA |
| +061+ | 3.2 | Denny McLain | 193.3 | DET |
| +063+ | 3.19 | Bob Veale | 242.7 | PIT |
| +064+ | 3.16 | Bobby Bolin | 146 | SFN |
| +065+ | 3.11 | Jim Perry | 152 | MIN |
| +068+ | 3.01 | Don Drysdale | 281.3 | LAN |
| +075+ | 2.87 | Steve Barber | 187.3 | BAL |
| +078+ | 2.8 | Al McBean | 109 | PIT |
| +081+ | 2.75 | Chris Short | 254.3 | PHI |
| +086+ | 2.63 | Robin Roberts | 178.7 | TOT |
_