| Starter | Tm | Tier | Game |
|---|---|---|---|
| John Denny | PHI | 10.28 | 198309221_PHI_WAS |
| Mario Soto | CIN | 9.42 | 198309230_SDN_CIN |
| Bob Welch | LAN | 4.64 | 198309240_LAN_ATL |
| Scott McGregor | BAL | 3.65 | 198309230_BAL_MIL |
| Steve Rogers | WAS | 3.49 | 198309222_PHI_WAS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dennis Eckersley | BOS | -9.52 | 198309230_BOS_DET |
| Frank Viola | MIN | -6.1 | 198309240_MIN_KCA |
| Dennis Martinez | BAL | -5.18 | 198309240_BAL_MIL |
| Mike Witt | ANA | -4.1 | 198309230_CHA_ANA |
| Len Barker | ATL | -3.02 | 198309230_LAN_ATL |
Based on accumulated WAA for this season up to 1983-09-24.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 7.81 | John Denny | 230.7 | PHI |
| +004+ | 7.46 | Mario Soto | 265.3 | CIN |
| +011+ | 6.52 | Atlee Hammaker | 172.3 | SFN |
| +018+ | 5.41 | Alejandro Pena | 167.7 | LAN |
| +019+ | 5.4 | Dave Stieb | 263.7 | TOR |
| +021+ | 5.35 | Bob Welch | 197.3 | LAN |
| +023+ | 5.19 | Mike Boddicker | 171.7 | BAL |
| +026+ | 4.93 | Scott McGregor | 250.3 | BAL |
| +031+ | 4.57 | Steve Carlton | 276.7 | PHI |
| +032+ | 4.56 | Jerry Reuss | 214.3 | LAN |
| +033+ | 4.51 | Rick Honeycutt | 207.7 | TOT |
| +036+ | 4.34 | Nolan Ryan | 185.3 | HOU |
| +043+ | 3.94 | Bryn Smith | 146.3 | WAS |
| +044+ | 3.9 | Steve Rogers | 262 | WAS |
| +045+ | 3.87 | Rick Rhoden | 236.3 | PIT |
| +050+ | 3.7 | Matt Young | 200 | SEA |
| +051+ | 3.67 | Larry McWilliams | 227 | PIT |
| +054+ | 3.46 | Joe Price | 144.7 | CIN |
| +055+ | 3.44 | Dave Stewart | 127.3 | TOT |
| +057+ | 3.4 | Jack Morris | 272.7 | DET |
| +059+ | 3.37 | Craig McMurtry | 213 | ATL |
| +064+ | 3.31 | Richard Dotson | 229.7 | CHA |
| +070+ | 3.21 | Charlie Hough | 235.7 | TEX |
| +071+ | 3.12 | Mark Thurmond | 109.7 | SDN |
| +072+ | 3.07 | Charlie Lea | 207.7 | WAS |
_