| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dave Stieb | TOR | 7.05 | 198409250_TOR_BOS |
| Mike Boddicker | BAL | 4.77 | 198409241_NYA_BAL |
| Dwight Gooden | NYN | 4.58 | 198409230_WAS_NYN |
| Orel Hershiser | LAN | 4.24 | 198409250_HOU_LAN |
| John Denny | PHI | 3.18 | 198409240_PHI_NYN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Neal Heaton | CLE | -6.33 | 198409250_SEA_CLE |
| Jim Clancy | TOR | -5.17 | 198409240_TOR_BOS |
| Mark Davis | SFN | -4.65 | 198409242_SDN_SFN |
| Mike Moore | SEA | -4.54 | 198409230_SEA_CHA |
| Dave Stewart | TEX | -3.53 | 198409230_TEX_ANA |
Based on accumulated WAA for this season up to 1984-09-25.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +007+ | 6.38 | Mike Boddicker | 254.3 | BAL |
| +009+ | 6.28 | Dwight Gooden | 218.3 | NYN |
| +012+ | 6.2 | Alejandro Pena | 201 | LAN |
| +015+ | 5.96 | Dave Stieb | 258.3 | TOR |
| +021+ | 5.1 | Rick Rhoden | 230.7 | PIT |
| +024+ | 4.96 | Charlie Lea | 224.3 | WAS |
| +025+ | 4.95 | Joe Niekro | 244.3 | HOU |
| +027+ | 4.72 | Bert Blyleven | 227.7 | CLE |
| +032+ | 4.59 | Orel Hershiser | 180.3 | LAN |
| +033+ | 4.51 | Frank Viola | 252 | MIN |
| +034+ | 4.41 | Fernando Valenzuela | 252 | LAN |
| +036+ | 4.37 | John Candelaria | 184 | PIT |
| +037+ | 4.33 | John Denny | 146.3 | PHI |
| +039+ | 4.26 | Ricky Mahler | 215 | ATL |
| +040+ | 4.22 | Larry McWilliams | 220.7 | PIT |
| +041+ | 4.11 | Ray Burris | 204.7 | OAK |
| +042+ | 4.07 | Rick Honeycutt | 184 | LAN |
| +043+ | 3.94 | Doyle Alexander | 245 | TOR |
| +049+ | 3.76 | Buddy Black | 246.7 | KCA |
| +056+ | 3.6 | Dan Schatzeder | 129.3 | WAS |
| +058+ | 3.55 | Storm Davis | 215.7 | BAL |
| +061+ | 3.49 | Phil Niekro | 215.3 | NYA |
| +065+ | 3.33 | Nolan Ryan | 183.7 | HOU |
| +071+ | 3.21 | Frank Tanana | 238.7 | TEX |
| +074+ | 3.18 | Jerry Koosman | 216.3 | PHI |
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