| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mario Soto | CIN | 7.71 | 198309130_ATL_CIN |
| Alejandro Pena | LAN | 5.13 | 198309150_LAN_HOU |
| Dave Stieb | TOR | 4.75 | 198309150_TOR_MIN |
| Scott McGregor | BAL | 3.92 | 198309131_BAL_BOS |
| Nolan Ryan | HOU | 3.9 | 198309150_LAN_HOU |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Frank Viola | MIN | -5.4 | 198309130_CHA_MIN |
| Frank Pastore | CIN | -3.38 | 198309140_ATL_CIN |
| Dennis Martinez | BAL | -3.32 | 198309140_BAL_BOS |
| Mike Caldwell | MIL | -2.37 | 198309130_MIL_NYA |
| Tommy John | ANA | -2.23 | 198309140_KCA_ANA |
Based on accumulated WAA for this season up to 1983-09-15.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 7.7 | Mario Soto | 252.3 | CIN |
| +003+ | 7.4 | John Denny | 216.7 | PHI |
| +009+ | 6.47 | Alejandro Pena | 166.3 | LAN |
| +008+ | 6.47 | Atlee Hammaker | 172.3 | SFN |
| +019+ | 5.26 | Bob Welch | 188 | LAN |
| +021+ | 5.16 | Dave Stieb | 255 | TOR |
| +026+ | 4.89 | Rick Honeycutt | 203.3 | TOT |
| +027+ | 4.56 | Jerry Reuss | 201.3 | LAN |
| +029+ | 4.51 | Scott McGregor | 237.3 | BAL |
| +030+ | 4.5 | Steve Rogers | 247.7 | WAS |
| +033+ | 4.28 | Steve Carlton | 261.7 | PHI |
| +038+ | 4.15 | Nolan Ryan | 179.3 | HOU |
| +042+ | 3.88 | Charlie Lea | 198 | WAS |
| +046+ | 3.72 | Mike Boddicker | 153.7 | BAL |
| +047+ | 3.7 | Jack Morris | 256.7 | DET |
| +048+ | 3.68 | Matt Young | 194 | SEA |
| +051+ | 3.42 | Joe Price | 144.7 | CIN |
| +055+ | 3.28 | Rick Rhoden | 220.3 | PIT |
| +060+ | 3.11 | Mark Thurmond | 98 | SDN |
| +066+ | 2.86 | Larry McWilliams | 218 | PIT |
| +067+ | 2.8 | Juan Berenguer | 142.3 | DET |
| +073+ | 2.76 | Charlie Hough | 226.7 | TEX |
| +074+ | 2.72 | Bryn Smith | 130.3 | WAS |
| +076+ | 2.65 | Dave Righetti | 215 | NYA |
| +084+ | 2.57 | Frank Tanana | 139.7 | TEX |
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