| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dave Stieb | TOR | 8.42 | 198409050_TOR_NYA |
| Charlie Lea | WAS | 3.86 | 198409060_CHN_WAS |
| Mike Boddicker | BAL | 3.77 | 198409040_BAL_DET |
| John Candelaria | PIT | 3.44 | 198409050_NYN_PIT |
| Orel Hershiser | LAN | 2.66 | 198409040_SDN_LAN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jim Clancy | TOR | -2.6 | 198409040_TOR_NYA |
| Mike Scott | HOU | -1.49 | 198409040_HOU_ATL |
| Mike Brown | BOS | -1.48 | 198409050_BOS_MIL |
| Steve McCatty | OAK | -1.45 | 198409040_OAK_CHA |
| Bruce Berenyi | NYN | -1.3 | 198409050_NYN_PIT |
Based on accumulated WAA for this season up to 1984-09-06.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 7.39 | Dave Stieb | 231.3 | TOR |
| +010+ | 6.11 | Alejandro Pena | 197 | LAN |
| +009+ | 6.11 | Larry McWilliams | 197.7 | PIT |
| +015+ | 5.25 | Mike Boddicker | 220.3 | BAL |
| +016+ | 5.05 | Charlie Lea | 220.3 | WAS |
| +017+ | 5.04 | John Candelaria | 173.3 | PIT |
| +020+ | 4.79 | Joe Niekro | 210.3 | HOU |
| +026+ | 4.62 | John Denny | 119.7 | PHI |
| +030+ | 4.54 | Orel Hershiser | 152.7 | LAN |
| +032+ | 4.17 | Rick Rhoden | 206.7 | PIT |
| +034+ | 4.01 | Ricky Mahler | 185.3 | ATL |
| +035+ | 3.99 | Storm Davis | 194.3 | BAL |
| +036+ | 3.98 | Dan Schatzeder | 123 | WAS |
| +040+ | 3.91 | Phil Niekro | 204 | NYA |
| +042+ | 3.75 | Bob Knepper | 205.7 | HOU |
| +045+ | 3.66 | Rick Honeycutt | 181 | LAN |
| +044+ | 3.66 | Fernando Valenzuela | 229 | LAN |
| +048+ | 3.57 | Jerry Koosman | 196.3 | PHI |
| +052+ | 3.49 | Dwight Gooden | 184 | NYN |
| +054+ | 3.46 | Frank Tanana | 210.7 | TEX |
| +055+ | 3.42 | Joaquin Andujar | 224 | SLN |
| +057+ | 3.4 | Ray Burris | 179.7 | OAK |
| +068+ | 3.01 | Frank Viola | 208 | MIN |
| +069+ | 2.95 | Nolan Ryan | 175.3 | HOU |
| +070+ | 2.92 | Bert Blyleven | 192.7 | CLE |
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