| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dave Stieb | TOR | 8.57 | 198405300_TOR_CHA |
| Steve Carlton | PHI | 8.5 | 198405300_SFN_PHI |
| Phil Niekro | NYA | 3.83 | 198405290_NYA_ANA |
| Larry McWilliams | PIT | 2.63 | 198405290_PIT_CIN |
| Mike Boddicker | BAL | 1.86 | 198405300_BAL_SEA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mike Scott | HOU | -3.12 | 198405300_SLN_HOU |
| Chuck Rainey | CHN | -2.91 | 198405310_CHN_PHI |
| Frank Pastore | CIN | -2.33 | 198405310_ATL_CIN |
| Neal Heaton | CLE | -2.17 | 198405301_MIL_CLE |
| Frank LaCorte | ANA | -1.36 | 198405290_NYA_ANA |
Based on accumulated WAA for this season up to 1984-05-31.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.96 | Jack Morris | 100.3 | DET |
| +003+ | 3.53 | Storm Davis | 82.3 | BAL |
| +004+ | 3.53 | Phil Niekro | 78.7 | NYA |
| +007+ | 3.19 | Bob Knepper | 83.7 | HOU |
| +006+ | 3.19 | Nolan Ryan | 76.3 | HOU |
| +008+ | 3.16 | Bruce Hurst | 77.7 | BOS |
| +009+ | 3.12 | John Denny | 64 | PHI |
| +010+ | 3.01 | Rick Honeycutt | 73.3 | LAN |
| +012+ | 2.89 | Dave Stieb | 86 | TOR |
| +014+ | 2.71 | Fernando Valenzuela | 84.7 | LAN |
| +015+ | 2.68 | Ray Burris | 58.3 | OAK |
| +019+ | 2.44 | Richard Dotson | 82.3 | CHA |
| +023+ | 2.27 | Steve Carlton | 76.3 | PHI |
| +025+ | 2.21 | Steve Trout | 67.3 | CHN |
| +027+ | 2.13 | John Candelaria | 65.3 | PIT |
| +028+ | 2.1 | Mike Boddicker | 85.3 | BAL |
| +029+ | 2.09 | Alejandro Pena | 72.3 | LAN |
| +030+ | 2.09 | Tommy John | 74 | ANA |
| +035+ | 1.91 | Mario Soto | 80.3 | CIN |
| +037+ | 1.89 | Frank Viola | 78 | MIN |
| +040+ | 1.85 | Larry McWilliams | 62 | PIT |
| +042+ | 1.84 | Charlie Lea | 80.3 | WAS |
| +047+ | 1.74 | Ricky Mahler | 42.3 | ATL |
| +052+ | 1.71 | Chuck Porter | 46.7 | MIL |
| +054+ | 1.69 | Luis Leal | 74 | TOR |
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