| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mike Boddicker | BAL | 5.58 | 198409290_BAL_BOS |
| Dave Stieb | TOR | 5.08 | 198409290_TOR_MIL |
| Rick Rhoden | PIT | 3.84 | 198409290_PIT_PHI |
| Joe Niekro | HOU | 3.53 | 198409290_HOU_CIN |
| Frank Viola | MIN | 2.97 | 198409280_MIN_CLE |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Neal Heaton | CLE | -7.59 | 198409290_MIN_CLE |
| Jim Clancy | TOR | -5.93 | 198409280_TOR_MIL |
| Mike Moore | SEA | -4.76 | 198409280_CHA_SEA |
| Floyd Bannister | CHA | -3.85 | 198409290_CHA_SEA |
| Chris Codiroli | OAK | -2.78 | 198409290_KCA_OAK |
Based on accumulated WAA for this season up to 1984-09-29.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +007+ | 6.51 | Mike Boddicker | 263 | BAL |
| +009+ | 6.26 | Dwight Gooden | 218.3 | NYN |
| +010+ | 6.15 | Alejandro Pena | 201 | LAN |
| +016+ | 5.85 | Dave Stieb | 267.3 | TOR |
| +015+ | 5.85 | Rick Rhoden | 239.7 | PIT |
| +020+ | 5.48 | Bert Blyleven | 236.7 | CLE |
| +026+ | 4.92 | Charlie Lea | 224.3 | WAS |
| +029+ | 4.63 | Joe Niekro | 248.3 | HOU |
| +033+ | 4.54 | Orel Hershiser | 180.3 | LAN |
| +034+ | 4.5 | Fernando Valenzuela | 261 | LAN |
| +036+ | 4.34 | John Candelaria | 184 | PIT |
| +038+ | 4.32 | John Denny | 146.3 | PHI |
| +041+ | 4.19 | Larry McWilliams | 220.7 | PIT |
| +042+ | 4.12 | Buddy Black | 255.7 | KCA |
| +044+ | 4.02 | Rick Honeycutt | 184 | LAN |
| +047+ | 3.84 | Doyle Alexander | 254 | TOR |
| +050+ | 3.76 | Frank Viola | 257.7 | MIN |
| +051+ | 3.71 | Storm Davis | 224.7 | BAL |
| +054+ | 3.62 | Ray Burris | 211.3 | OAK |
| +056+ | 3.6 | Ricky Mahler | 222 | ATL |
| +058+ | 3.57 | Dan Schatzeder | 136.3 | WAS |
| +066+ | 3.36 | Bob Knepper | 234 | HOU |
| +065+ | 3.36 | Mark Thurmond | 178.7 | SDN |
| +068+ | 3.3 | Nolan Ryan | 183.7 | HOU |
| +070+ | 3.25 | Frank Tanana | 246.7 | TEX |
_