| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mario Soto | CIN | 9.57 | 198309180_HOU_CIN |
| Alejandro Pena | LAN | 6.81 | 198309200_HOU_LAN |
| Dave Stieb | TOR | 4.05 | 198309200_SEA_TOR |
| Scott McGregor | BAL | 3.79 | 198309190_MIL_BAL |
| Nolan Ryan | HOU | 2.92 | 198309200_HOU_LAN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Frank Viola | MIN | -5.65 | 198309190_MIN_CHA |
| Dennis Martinez | BAL | -2.82 | 198309200_BAL_DET |
| Mike Witt | ANA | -2.78 | 198309180_TEX_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 1983-09-20.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 8.15 | John Denny | 224.7 | PHI |
| +004+ | 7.59 | Mario Soto | 259.3 | CIN |
| +009+ | 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 |
| +027+ | 4.76 | Scott McGregor | 243.3 | BAL |
| +028+ | 4.65 | Steve Rogers | 255.7 | WAS |
| +029+ | 4.54 | Rick Honeycutt | 207.7 | TOT |
| +031+ | 4.41 | Mike Boddicker | 162.7 | BAL |
| +032+ | 4.36 | Nolan Ryan | 185.3 | HOU |
| +034+ | 4.32 | Steve Carlton | 268.7 | PHI |
| +037+ | 4.2 | Jerry Reuss | 205.3 | LAN |
| +044+ | 4.01 | Jack Morris | 264.7 | DET |
| +046+ | 3.84 | Charlie Lea | 204 | WAS |
| +047+ | 3.72 | Matt Young | 200 | SEA |
| +050+ | 3.69 | Larry McWilliams | 227 | PIT |
| +052+ | 3.55 | Bryn Smith | 139.3 | WAS |
| +056+ | 3.48 | Joe Price | 144.7 | CIN |
| +057+ | 3.47 | Mark Thurmond | 104 | SDN |
| +064+ | 3.3 | Jose DeLeon | 91 | PIT |
| +063+ | 3.3 | Rick Rhoden | 227.3 | PIT |
| +065+ | 3.25 | Charlie Hough | 235.7 | TEX |
| +075+ | 2.86 | Dave Stewart | 118.3 | TOT |
| +076+ | 2.81 | Craig McMurtry | 204 | ATL |
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