| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mario Soto | CIN | 9.48 | 198405270_CIN_CHN |
| Dave Stieb | TOR | 7.87 | 198405250_CLE_TOR |
| Nolan Ryan | HOU | 6.8 | 198405260_PIT_HOU |
| Charlie Lea | WAS | 2.93 | 198405270_SFN_WAS |
| Joaquin Andujar | SLN | 2.58 | 198405270_SLN_ATL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mike Torrez | NYN | -2.86 | 198405270_LAN_NYN |
| Mike Scott | HOU | -2.55 | 198405250_PIT_HOU |
| Lary Sorensen | OAK | -2.47 | 198405260_NYA_OAK |
| Dennis Eckersley | CHN | -2.45 | 198405270_CIN_CHN |
| Jim Gott | TOR | -2.43 | 198405272_CLE_TOR |
Based on accumulated WAA for this season up to 1984-05-27.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 4.05 | Phil Niekro | 75 | NYA |
| +003+ | 3.42 | Jack Morris | 91.3 | DET |
| +004+ | 3.27 | Storm Davis | 76.3 | BAL |
| +005+ | 3.23 | Nolan Ryan | 76.3 | HOU |
| +006+ | 3.2 | Bruce Hurst | 77.7 | BOS |
| +007+ | 3.14 | John Denny | 64 | PHI |
| +008+ | 3.04 | Rick Honeycutt | 73.3 | LAN |
| +011+ | 2.62 | Ray Burris | 58.3 | OAK |
| +013+ | 2.57 | Bob Knepper | 76 | HOU |
| +016+ | 2.47 | Richard Dotson | 82.3 | CHA |
| +019+ | 2.42 | Dave Stieb | 77.7 | TOR |
| +023+ | 2.19 | Fernando Valenzuela | 75.7 | LAN |
| +024+ | 2.12 | Tommy John | 74 | ANA |
| +028+ | 2.04 | Steve Carlton | 68.3 | PHI |
| +030+ | 2.03 | Geoff Zahn | 60.7 | ANA |
| +029+ | 2.03 | Mario Soto | 80.3 | CIN |
| +031+ | 1.94 | Larry McWilliams | 57 | PIT |
| +033+ | 1.91 | Frank Viola | 78 | MIN |
| +036+ | 1.86 | Charlie Lea | 80.3 | WAS |
| +043+ | 1.72 | John Candelaria | 59.3 | PIT |
| +042+ | 1.72 | Chuck Porter | 46.7 | MIL |
| +048+ | 1.7 | Frank Tanana | 65.7 | TEX |
| +047+ | 1.7 | Luis Leal | 74 | TOR |
| +051+ | 1.64 | Eric Show | 66 | SDN |
| +055+ | 1.56 | Steve Trout | 59.7 | CHN |
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