| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dave Stieb | TOR | 7.55 | 198409200_MIL_TOR |
| Mike Boddicker | BAL | 5.83 | 198409190_BAL_NYA |
| Alejandro Pena | LAN | 5.32 | 198409180_LAN_ATL |
| Larry McWilliams | PIT | 3.82 | 198409190_PIT_CHN |
| John Denny | PHI | 3.79 | 198409180_NYN_PHI |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Neal Heaton | CLE | -6.11 | 198409190_CLE_SEA |
| Mike Moore | SEA | -4.99 | 198409180_CLE_SEA |
| Chris Codiroli | OAK | -3.78 | 198409180_TEX_OAK |
| Jim Clancy | TOR | -3.21 | 198409190_BOS_TOR |
| Floyd Bannister | CHA | -2.44 | 198409190_CHA_MIN |
Based on accumulated WAA for this season up to 1984-09-20.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +006+ | 7.2 | Dave Stieb | 253.7 | TOR |
| +010+ | 6.15 | Alejandro Pena | 201 | LAN |
| +015+ | 5.78 | Mike Boddicker | 245.3 | BAL |
| +016+ | 5.77 | Dwight Gooden | 210.3 | NYN |
| +017+ | 5.45 | Orel Hershiser | 178.7 | LAN |
| +020+ | 5.2 | Joe Niekro | 230.3 | HOU |
| +024+ | 4.92 | Charlie Lea | 224.3 | WAS |
| +025+ | 4.8 | Bert Blyleven | 219.7 | CLE |
| +026+ | 4.75 | John Denny | 139.3 | PHI |
| +028+ | 4.63 | Rick Rhoden | 222.7 | PIT |
| +029+ | 4.55 | Frank Viola | 243.3 | MIN |
| +033+ | 4.35 | Larry McWilliams | 214.7 | PIT |
| +038+ | 4.24 | Storm Davis | 209.3 | BAL |
| +039+ | 4.2 | Ray Burris | 196.7 | OAK |
| +040+ | 4.15 | Fernando Valenzuela | 245 | LAN |
| +041+ | 4.12 | John Candelaria | 181 | PIT |
| +043+ | 4.06 | Dan Schatzeder | 123 | WAS |
| +045+ | 3.85 | Rick Honeycutt | 182 | LAN |
| +049+ | 3.61 | Jerry Koosman | 209.7 | PHI |
| +052+ | 3.51 | Mark Langston | 216.7 | SEA |
| +053+ | 3.48 | Buddy Black | 240.7 | KCA |
| +057+ | 3.42 | Phil Niekro | 215.3 | NYA |
| +058+ | 3.38 | Ricky Mahler | 198 | ATL |
| +060+ | 3.35 | Nolan Ryan | 183.7 | HOU |
| +062+ | 3.34 | Doyle Alexander | 236 | TOR |
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