| Starter | Tm | Tier | Game |
|---|---|---|---|
| John Denny | PHI | 10.28 | 198309221_PHI_WAS |
| Alejandro Pena | LAN | 6.81 | 198309200_HOU_LAN |
| Dave Stieb | TOR | 4.05 | 198309200_SEA_TOR |
| Steve Rogers | WAS | 3.49 | 198309222_PHI_WAS |
| Jack Morris | DET | 3.32 | 198309211_BAL_DET |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Frank Pastore | CIN | -2.82 | 198309212_CIN_ATL |
| Dennis Martinez | BAL | -2.82 | 198309200_BAL_DET |
| Jerry Koosman | CHA | -2.77 | 198309220_CHA_ANA |
| Mike Caldwell | MIL | -1.84 | 198309200_MIL_CLE |
| Bob Forsch | SLN | -1.46 | 198309200_SLN_WAS |
Based on accumulated WAA for this season up to 1983-09-22.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 7.84 | John Denny | 230.7 | PHI |
| +004+ | 7.6 | Mario Soto | 259.3 | CIN |
| +008+ | 6.54 | Atlee Hammaker | 172.3 | SFN |
| +017+ | 5.49 | Bob Welch | 194 | LAN |
| +018+ | 5.44 | Dave Stieb | 263.7 | TOR |
| +019+ | 5.43 | Alejandro Pena | 167.7 | LAN |
| +022+ | 5.21 | Mike Boddicker | 171.7 | BAL |
| +028+ | 4.75 | Scott McGregor | 243.3 | BAL |
| +030+ | 4.54 | Rick Honeycutt | 207.7 | TOT |
| +033+ | 4.37 | Nolan Ryan | 185.3 | HOU |
| +034+ | 4.31 | Steve Carlton | 268.7 | PHI |
| +039+ | 4.2 | Jerry Reuss | 205.3 | LAN |
| +043+ | 3.95 | Steve Rogers | 262 | WAS |
| +047+ | 3.73 | Matt Young | 200 | SEA |
| +049+ | 3.7 | Larry McWilliams | 227 | PIT |
| +051+ | 3.55 | Bryn Smith | 139.3 | WAS |
| +053+ | 3.48 | Joe Price | 144.7 | CIN |
| +054+ | 3.47 | Mark Thurmond | 104 | SDN |
| +056+ | 3.45 | Jack Morris | 272.7 | DET |
| +059+ | 3.41 | Craig McMurtry | 213 | ATL |
| +063+ | 3.31 | Rick Rhoden | 227.3 | PIT |
| +065+ | 3.25 | Charlie Hough | 235.7 | TEX |
| +069+ | 3.11 | Charlie Lea | 207.7 | WAS |
| +075+ | 2.91 | Jose DeLeon | 96 | PIT |
| +076+ | 2.86 | Dave Stewart | 118.3 | TOT |
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