| Starter | Tm | Tier | Game |
|---|---|---|---|
| Larry McWilliams | PIT | 4.87 | 198409030_PIT_WAS |
| Joe Niekro | HOU | 3.87 | 198409020_HOU_SLN |
| John Denny | PHI | 3.83 | 198409030_CHN_PHI |
| Mike Boddicker | BAL | 3.77 | 198409040_BAL_DET |
| Orel Hershiser | LAN | 2.66 | 198409040_SDN_LAN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Neal Heaton | CLE | -6.2 | 198409020_BOS_CLE |
| Chris Codiroli | OAK | -3.55 | 198409030_OAK_CHA |
| Mike Moore | SEA | -3.26 | 198409020_BAL_SEA |
| Jim Clancy | TOR | -2.6 | 198409040_TOR_NYA |
| Craig McMurtry | ATL | -2.27 | 198409030_HOU_ATL |
Based on accumulated WAA for this season up to 1984-09-04.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 7.3 | Dave Stieb | 223 | TOR |
| +008+ | 6.23 | Alejandro Pena | 197 | LAN |
| +010+ | 6.11 | Larry McWilliams | 197.7 | PIT |
| +015+ | 5.23 | Mike Boddicker | 220.3 | BAL |
| +019+ | 4.79 | Joe Niekro | 210.3 | HOU |
| +021+ | 4.76 | Charlie Lea | 212.3 | WAS |
| +025+ | 4.63 | Orel Hershiser | 152.7 | LAN |
| +027+ | 4.6 | John Denny | 119.7 | PHI |
| +028+ | 4.6 | John Candelaria | 168.3 | PIT |
| +032+ | 4.13 | Dave Dravecky | 133 | SDN |
| +037+ | 3.98 | Storm Davis | 194.3 | BAL |
| +039+ | 3.92 | Phil Niekro | 204 | NYA |
| +040+ | 3.89 | Dan Schatzeder | 122 | WAS |
| +041+ | 3.77 | Rick Honeycutt | 181 | LAN |
| +049+ | 3.55 | Rick Rhoden | 199.7 | PIT |
| +048+ | 3.55 | Ricky Mahler | 174.3 | ATL |
| +053+ | 3.47 | Frank Tanana | 210.7 | TEX |
| +052+ | 3.47 | Dwight Gooden | 184 | NYN |
| +054+ | 3.42 | Joaquin Andujar | 224 | SLN |
| +056+ | 3.37 | Bob Knepper | 196.7 | HOU |
| +057+ | 3.34 | Fernando Valenzuela | 219 | LAN |
| +059+ | 3.27 | Jerry Koosman | 188.3 | PHI |
| +065+ | 3.09 | Ray Burris | 171.7 | OAK |
| +067+ | 3 | Frank Viola | 208 | MIN |
| +069+ | 2.91 | Bert Blyleven | 192.7 | CLE |
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