| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sandy Koufax | LAN | 8.93 | 196406211_LAN_CIN |
| Juan Pizarro | CHA | 4.13 | 196406211_NYA_CHA |
| Jim Maloney | CIN | 3.3 | 196406231_SFN_CIN |
| Juan Marichal | SFN | 3.27 | 196406231_SFN_CIN |
| Chris Short | PHI | 2.79 | 196406231_CHN_PHI |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bennie Daniels | TEX | -3.23 | 196406230_TEX_ANA |
| Barry Latman | ANA | -1.38 | 196406220_TEX_ANA |
| Frank Lary | NYN | -1.06 | 196406212_PHI_NYN |
| John O'Donoghue | OAK | -0.91 | 196406231_DET_OAK |
| Lew Burdette | CHN | -0.53 | 196406212_CHN_PIT |
Based on accumulated WAA for this season up to 1964-06-23.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 5.85 | Whitey Ford | 128.3 | NYA |
| +003+ | 4.38 | Don Drysdale | 137.7 | LAN |
| +005+ | 4.12 | Sandy Koufax | 113.7 | LAN |
| +006+ | 3.91 | Jim Bunning | 108.7 | PHI |
| +010+ | 3.63 | Dean Chance | 94.3 | ANA |
| +011+ | 3.37 | Bob Gibson | 105 | SLN |
| +013+ | 3.26 | Chris Short | 76 | PHI |
| +016+ | 3.17 | Juan Pizarro | 89.7 | CHA |
| +022+ | 2.92 | Robin Roberts | 97.3 | BAL |
| +025+ | 2.68 | Jack Kralick | 98 | CLE |
| +029+ | 2.53 | Jim Maloney | 101 | CIN |
| +033+ | 2.42 | Juan Marichal | 125.3 | SFN |
| +040+ | 2.06 | Roger Craig | 72.7 | SLN |
| +043+ | 1.98 | Hank Fischer | 84 | ATL |
| +047+ | 1.92 | Vern Law | 93.7 | PIT |
| +052+ | 1.81 | Turk Farrell | 98 | HOU |
| +054+ | 1.79 | Dick Ellsworth | 126 | CHN |
| +056+ | 1.75 | Ron Herbel | 68 | SFN |
| +060+ | 1.65 | Ken Johnson | 106 | HOU |
| +066+ | 1.54 | Steve Hamilton | 37.7 | NYA |
| +068+ | 1.49 | Gary Peters | 94.7 | CHA |
| +070+ | 1.48 | Claude Osteen | 98.7 | TEX |
| +071+ | 1.43 | Gaylord Perry | 46 | SFN |
| +072+ | 1.41 | Fred Newman | 67.7 | ANA |
| +073+ | 1.41 | Tony Cloninger | 89.7 | ATL |
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