| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sam McDowell | CLE | 5 | 196508311_CLE_OAK |
| Milt Pappas | BAL | 4.99 | 196508290_BAL_TEX |
| Jim Bunning | PHI | 2.87 | 196508311_SFN_PHI |
| George Brunet | ANA | 2.62 | 196508300_NYA_ANA |
| Jim Kaat | MIN | 1.93 | 196508300_DET_MIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ray Sadecki | SLN | -6.42 | 196508290_SLN_CIN |
| Dave Morehead | BOS | -2 | 196508311_BOS_TEX |
| Lew Burdette | PHI | -1.25 | 196508312_SFN_PHI |
| Don Nottebart | HOU | -0.86 | 196508290_HOU_PIT |
| Buster Narum | TEX | -0.64 | 196508290_BAL_TEX |
Based on accumulated WAA for this season up to 1965-08-31.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 9.77 | Juan Marichal | 237 | SFN |
| +002+ | 8.32 | Sandy Koufax | 264 | LAN |
| +006+ | 6.59 | Sam McDowell | 213.3 | CLE |
| +008+ | 6.5 | Vern Law | 199.3 | PIT |
| +017+ | 5.11 | Bob Shaw | 188.3 | SFN |
| +016+ | 5.11 | Sonny Siebert | 143.3 | CLE |
| +018+ | 5.03 | Milt Pappas | 181.3 | BAL |
| +020+ | 4.9 | Mel Stottlemyre | 237 | NYA |
| +023+ | 4.74 | Jim Bunning | 230.7 | PHI |
| +032+ | 4.35 | George Brunet | 159.7 | ANA |
| +036+ | 4.13 | Marcelino Lopez | 199 | ANA |
| +038+ | 4.12 | Jim Kaat | 217.7 | MIN |
| +039+ | 3.97 | Jim Maloney | 199.3 | CIN |
| +047+ | 3.41 | Denny McLain | 186.3 | DET |
| +052+ | 3.24 | Don Drysdale | 253.3 | LAN |
| +059+ | 3.01 | Pete Richert | 149.7 | TEX |
| +060+ | 3 | Bobby Bolin | 117.3 | SFN |
| +064+ | 2.91 | Jim Perry | 125.3 | MIN |
| +063+ | 2.91 | Bob Gibson | 244.7 | SLN |
| +067+ | 2.75 | Claude Osteen | 227 | LAN |
| +068+ | 2.72 | Al McBean | 99.7 | PIT |
| +070+ | 2.69 | Bob Veale | 214.3 | PIT |
| +082+ | 2.42 | Joe Horlen | 185.3 | CHA |
| +086+ | 2.34 | Robin Roberts | 156 | TOT |
| +090+ | 2.11 | Chris Short | 219.3 | PHI |
_