| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dave Stieb | TOR | 7.55 | 198409200_MIL_TOR |
| Mike Boddicker | BAL | 5.83 | 198409190_BAL_NYA |
| Larry McWilliams | PIT | 3.82 | 198409190_PIT_CHN |
| Orel Hershiser | LAN | 3.76 | 198409200_LAN_HOU |
| Joe Niekro | HOU | 3.75 | 198409210_CIN_HOU |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Neal Heaton | CLE | -6.11 | 198409190_CLE_SEA |
| Jim Clancy | TOR | -3.21 | 198409190_BOS_TOR |
| Floyd Bannister | CHA | -2.44 | 198409190_CHA_MIN |
| Dick Ruthven | CHN | -1.37 | 198409200_PIT_CHN |
| Craig McMurtry | ATL | -1.36 | 198409190_CIN_ATL |
Based on accumulated WAA for this season up to 1984-09-21.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +006+ | 7.18 | Dave Stieb | 253.7 | TOR |
| +009+ | 6.15 | Alejandro Pena | 201 | LAN |
| +014+ | 5.77 | Mike Boddicker | 245.3 | BAL |
| +015+ | 5.75 | Dwight Gooden | 210.3 | NYN |
| +018+ | 5.45 | Orel Hershiser | 178.7 | LAN |
| +023+ | 4.92 | Charlie Lea | 224.3 | WAS |
| +024+ | 4.86 | Joe Niekro | 236 | HOU |
| +025+ | 4.8 | Bert Blyleven | 219.7 | CLE |
| +026+ | 4.75 | John Denny | 139.3 | PHI |
| +027+ | 4.62 | Rick Rhoden | 222.7 | PIT |
| +030+ | 4.54 | Frank Viola | 243.3 | MIN |
| +035+ | 4.35 | Fernando Valenzuela | 252 | LAN |
| +036+ | 4.34 | Larry McWilliams | 214.7 | PIT |
| +037+ | 4.29 | John Candelaria | 183 | PIT |
| +040+ | 4.2 | Ray Burris | 196.7 | OAK |
| +042+ | 3.96 | Ricky Mahler | 207 | ATL |
| +044+ | 3.85 | Rick Honeycutt | 182 | LAN |
| +048+ | 3.57 | Dan Schatzeder | 129.3 | WAS |
| +050+ | 3.53 | Storm Davis | 215.7 | BAL |
| +052+ | 3.49 | Mark Langston | 216.7 | SEA |
| +053+ | 3.46 | Buddy Black | 240.7 | KCA |
| +056+ | 3.44 | John Butcher | 217 | MIN |
| +059+ | 3.41 | Phil Niekro | 215.3 | NYA |
| +063+ | 3.35 | Nolan Ryan | 183.7 | HOU |
| +064+ | 3.32 | Doyle Alexander | 236 | TOR |
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