| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mario Soto | CIN | 9.48 | 198405270_CIN_CHN |
| John Candelaria | PIT | 4.75 | 198405280_PIT_HOU |
| Jack Morris | DET | 4.28 | 198405280_DET_OAK |
| Joe Niekro | HOU | 3.93 | 198405270_PIT_HOU |
| Phil Niekro | NYA | 3.83 | 198405290_NYA_ANA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Chris Codiroli | OAK | -3.54 | 198405280_DET_OAK |
| Mike Torrez | NYN | -2.86 | 198405270_LAN_NYN |
| Dennis Eckersley | CHN | -2.45 | 198405270_CIN_CHN |
| Jim Gott | TOR | -2.43 | 198405272_CLE_TOR |
| Frank LaCorte | ANA | -1.36 | 198405290_NYA_ANA |
Based on accumulated WAA for this season up to 1984-05-29.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 4 | Jack Morris | 100.3 | DET |
| +003+ | 3.57 | Storm Davis | 82.3 | BAL |
| +004+ | 3.56 | Phil Niekro | 78.7 | NYA |
| +005+ | 3.23 | Bob Knepper | 83.7 | HOU |
| +006+ | 3.23 | Nolan Ryan | 76.3 | HOU |
| +007+ | 3.21 | Bruce Hurst | 77.7 | BOS |
| +008+ | 3.15 | John Denny | 64 | PHI |
| +009+ | 3.05 | Rick Honeycutt | 73.3 | LAN |
| +012+ | 2.75 | Fernando Valenzuela | 84.7 | LAN |
| +014+ | 2.62 | Ray Burris | 58.3 | OAK |
| +016+ | 2.48 | Richard Dotson | 82.3 | CHA |
| +018+ | 2.45 | Dave Stieb | 77.7 | TOR |
| +023+ | 2.23 | John Candelaria | 65.3 | PIT |
| +026+ | 2.12 | Tommy John | 74 | ANA |
| +028+ | 2.05 | Steve Carlton | 68.3 | PHI |
| +030+ | 2.02 | Mario Soto | 80.3 | CIN |
| +032+ | 1.94 | Larry McWilliams | 62 | PIT |
| +033+ | 1.92 | Frank Viola | 78 | MIN |
| +035+ | 1.87 | Charlie Lea | 80.3 | WAS |
| +044+ | 1.73 | Chuck Porter | 46.7 | MIL |
| +045+ | 1.72 | Luis Leal | 74 | TOR |
| +050+ | 1.66 | Frank Tanana | 72.7 | TEX |
| +051+ | 1.61 | Eric Show | 73 | SDN |
| +054+ | 1.57 | Steve Trout | 59.7 | CHN |
| +056+ | 1.55 | Alejandro Pena | 63 | LAN |
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