| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dave Stieb | TOR | 8.86 | 198409100_NYA_TOR |
| Larry McWilliams | PIT | 5.91 | 198409080_SLN_PIT |
| Mike Boddicker | BAL | 4.57 | 198409090_MIL_BAL |
| John Denny | PHI | 3.52 | 198409080_PHI_WAS |
| Orel Hershiser | LAN | 3.27 | 198409090_CIN_LAN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Neal Heaton | CLE | -5.5 | 198409080_OAK_CLE |
| Mike Moore | SEA | -2.93 | 198409080_SEA_KCA |
| Chris Codiroli | OAK | -2.74 | 198409080_OAK_CLE |
| Jim Clancy | TOR | -2.71 | 198409090_DET_TOR |
| Jim Slaton | ANA | -2.14 | 198409080_ANA_CHA |
Based on accumulated WAA for this season up to 1984-09-10.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +004+ | 6.89 | Dave Stieb | 237.3 | TOR |
| +012+ | 6.08 | Mike Boddicker | 229.3 | BAL |
| +016+ | 5.27 | Larry McWilliams | 202 | PIT |
| +018+ | 5.05 | Charlie Lea | 220.3 | WAS |
| +019+ | 4.97 | John Denny | 125.7 | PHI |
| +023+ | 4.86 | Joe Niekro | 217.7 | HOU |
| +026+ | 4.63 | Orel Hershiser | 160.7 | LAN |
| +030+ | 4.41 | John Candelaria | 175.3 | PIT |
| +031+ | 4.32 | Dwight Gooden | 193 | NYN |
| +032+ | 4.23 | Ray Burris | 188.3 | OAK |
| +033+ | 4.21 | Rick Rhoden | 206.7 | PIT |
| +035+ | 4.1 | Storm Davis | 202.3 | BAL |
| +037+ | 4.08 | Ricky Mahler | 185.3 | ATL |
| +039+ | 3.99 | Phil Niekro | 204 | NYA |
| +040+ | 3.98 | Dan Schatzeder | 123 | WAS |
| +045+ | 3.85 | Joaquin Andujar | 233 | SLN |
| +046+ | 3.8 | Bob Knepper | 205.7 | HOU |
| +047+ | 3.76 | Jerry Koosman | 202.7 | PHI |
| +048+ | 3.74 | Bert Blyleven | 201.7 | CLE |
| +049+ | 3.7 | Fernando Valenzuela | 229 | LAN |
| +051+ | 3.69 | Rick Honeycutt | 181 | LAN |
| +061+ | 3.29 | Frank Tanana | 217.3 | TEX |
| +063+ | 3.23 | John Butcher | 196 | MIN |
| +064+ | 3.21 | Bryn Smith | 164 | WAS |
| +065+ | 3.19 | Frank Viola | 216.7 | MIN |
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