| Starter | Tm | Tier | Game |
|---|---|---|---|
| Alejandro Pena | LAN | 6.81 | 198309200_HOU_LAN |
| Dave Stieb | TOR | 4.05 | 198309200_SEA_TOR |
| Scott McGregor | BAL | 3.79 | 198309190_MIL_BAL |
| Jack Morris | DET | 3.32 | 198309211_BAL_DET |
| Nolan Ryan | HOU | 2.92 | 198309200_HOU_LAN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Frank Viola | MIN | -5.65 | 198309190_MIN_CHA |
| Frank Pastore | CIN | -2.82 | 198309212_CIN_ATL |
| Dennis Martinez | BAL | -2.82 | 198309200_BAL_DET |
| 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 1983-09-21.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 8.14 | John Denny | 224.7 | PHI |
| +004+ | 7.59 | Mario Soto | 259.3 | CIN |
| +008+ | 6.53 | Atlee Hammaker | 172.3 | SFN |
| +017+ | 5.48 | Bob Welch | 194 | LAN |
| +018+ | 5.43 | Dave Stieb | 263.7 | TOR |
| +019+ | 5.42 | Alejandro Pena | 167.7 | LAN |
| +022+ | 5.21 | Mike Boddicker | 171.7 | BAL |
| +028+ | 4.75 | Scott McGregor | 243.3 | BAL |
| +029+ | 4.63 | Steve Rogers | 255.7 | WAS |
| +030+ | 4.53 | Rick Honeycutt | 207.7 | TOT |
| +032+ | 4.37 | Nolan Ryan | 185.3 | HOU |
| +035+ | 4.31 | Steve Carlton | 268.7 | PHI |
| +041+ | 4.19 | Jerry Reuss | 205.3 | LAN |
| +045+ | 3.83 | Charlie Lea | 204 | WAS |
| +048+ | 3.71 | Matt Young | 200 | SEA |
| +049+ | 3.7 | Larry McWilliams | 227 | PIT |
| +052+ | 3.55 | Bryn Smith | 139.3 | WAS |
| +054+ | 3.48 | Joe Price | 144.7 | CIN |
| +055+ | 3.46 | Mark Thurmond | 104 | SDN |
| +056+ | 3.46 | Jack Morris | 272.7 | DET |
| +060+ | 3.4 | Craig McMurtry | 213 | ATL |
| +064+ | 3.31 | Rick Rhoden | 227.3 | PIT |
| +066+ | 3.24 | Charlie Hough | 235.7 | TEX |
| +075+ | 2.91 | Jose DeLeon | 96 | PIT |
| +076+ | 2.86 | Dave Stewart | 118.3 | TOT |
_