| Starter | Tm | Tier | Game |
|---|---|---|---|
| Alejandro Pena | LAN | 5.32 | 198409180_LAN_ATL |
| Charlie Lea | WAS | 4.17 | 198409160_WAS_PHI |
| Joe Niekro | HOU | 4.08 | 198409170_SFN_HOU |
| Dwight Gooden | NYN | 3.88 | 198409170_NYN_PHI |
| John Denny | PHI | 3.79 | 198409180_NYN_PHI |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Matt Young | SEA | -6.17 | 198409170_CLE_SEA |
| Dave Stewart | TEX | -4.39 | 198409160_MIN_TEX |
| Chris Codiroli | OAK | -3.78 | 198409180_TEX_OAK |
| Jim Slaton | ANA | -1.99 | 198409180_KCA_ANA |
| Bruce Berenyi | NYN | -1.29 | 198409160_NYN_CHN |
Based on accumulated WAA for this season up to 1984-09-18.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +005+ | 7.28 | Dave Stieb | 245.3 | TOR |
| +008+ | 6.29 | Mike Boddicker | 237.3 | BAL |
| +012+ | 6.13 | Alejandro Pena | 201 | LAN |
| +016+ | 5.73 | Dwight Gooden | 210.3 | NYN |
| +019+ | 5.18 | Joe Niekro | 230.3 | HOU |
| +021+ | 5.15 | Larry McWilliams | 209.7 | PIT |
| +022+ | 5.06 | Orel Hershiser | 169.7 | LAN |
| +023+ | 4.87 | Charlie Lea | 224.3 | WAS |
| +027+ | 4.76 | Bert Blyleven | 219.7 | CLE |
| +028+ | 4.73 | John Denny | 139.3 | PHI |
| +029+ | 4.61 | Rick Rhoden | 222.7 | PIT |
| +031+ | 4.54 | Frank Viola | 233.3 | MIN |
| +037+ | 4.21 | Storm Davis | 209.3 | BAL |
| +038+ | 4.18 | Ray Burris | 196.7 | OAK |
| +039+ | 4.12 | Fernando Valenzuela | 245 | LAN |
| +042+ | 4.03 | Dan Schatzeder | 123 | WAS |
| +044+ | 3.96 | John Candelaria | 179.3 | PIT |
| +046+ | 3.83 | Rick Honeycutt | 182 | LAN |
| +047+ | 3.59 | Jerry Koosman | 209.7 | PHI |
| +052+ | 3.46 | Buddy Black | 240.7 | KCA |
| +059+ | 3.4 | Phil Niekro | 215.3 | NYA |
| +060+ | 3.36 | Ricky Mahler | 198 | ATL |
| +062+ | 3.31 | Doyle Alexander | 236 | TOR |
| +065+ | 3.27 | Frank Tanana | 232.7 | TEX |
| +071+ | 3.22 | Nolan Ryan | 182.3 | HOU |
_