| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mario Soto | CIN | 8.87 | 198405120_SLN_CIN |
| Dave Stieb | TOR | 8.15 | 198405100_TOR_BAL |
| Steve Carlton | PHI | 6.88 | 198405110_PHI_SDN |
| Joe Niekro | HOU | 5.37 | 198405120_CHN_HOU |
| John Candelaria | PIT | 3.5 | 198405110_PIT_ATL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Frank Pastore | CIN | -3.08 | 198405100_CIN_WAS |
| Dennis Eckersley | BOS | -2.81 | 198405110_BOS_KCA |
| Marty Bystrom | PHI | -2.58 | 198405120_PHI_SDN |
| Chuck Rainey | CHN | -2.48 | 198405120_CHN_HOU |
| Mike Scott | HOU | -2.43 | 198405100_PHI_HOU |
Based on accumulated WAA for this season up to 1984-05-12.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.02 | Phil Niekro | 52.7 | NYA |
| +002+ | 2.62 | Jack Morris | 68 | DET |
| +006+ | 2.3 | Ray Burris | 38.3 | OAK |
| +008+ | 2.21 | Bob Knepper | 54 | HOU |
| +007+ | 2.21 | Storm Davis | 51.3 | BAL |
| +009+ | 2.15 | John Denny | 47 | PHI |
| +011+ | 2.04 | Tommy John | 60.3 | ANA |
| +012+ | 2.04 | Rick Honeycutt | 51.3 | LAN |
| +014+ | 1.93 | Joe Niekro | 58 | HOU |
| +016+ | 1.9 | Bruce Hurst | 52.7 | BOS |
| +020+ | 1.77 | Dave Stieb | 55.7 | TOR |
| +022+ | 1.77 | Scott Sanderson | 49.7 | CHN |
| +023+ | 1.76 | Eric Show | 51.7 | SDN |
| +025+ | 1.64 | Mario Soto | 61.3 | CIN |
| +029+ | 1.59 | Joaquin Andujar | 63 | SLN |
| +030+ | 1.54 | Frank Viola | 56.3 | MIN |
| +032+ | 1.51 | Dan Petry | 46.7 | DET |
| +033+ | 1.51 | Geoff Zahn | 44.3 | ANA |
| +039+ | 1.38 | Mike Boddicker | 54 | BAL |
| +040+ | 1.38 | Alejandro Pena | 51 | LAN |
| +042+ | 1.36 | Bill Laskey | 52.3 | SFN |
| +043+ | 1.36 | Andy McGaffigan | 20.3 | WAS |
| +047+ | 1.32 | Ed Vande Berg | 23.3 | SEA |
| +049+ | 1.31 | Nolan Ryan | 53.3 | HOU |
| +050+ | 1.3 | John Candelaria | 44.3 | PIT |
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