| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mario Soto | CIN | 9.42 | 198309230_SDN_CIN |
| Bob Welch | LAN | 4.64 | 198309240_LAN_ATL |
| Dave Stieb | TOR | 4.21 | 198309250_TOR_OAK |
| Scott McGregor | BAL | 3.65 | 198309230_BAL_MIL |
| Nolan Ryan | HOU | 3 | 198309250_SFN_HOU |
| 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 1983-09-25.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 7.79 | John Denny | 230.7 | PHI |
| +004+ | 7.46 | Mario Soto | 265.3 | CIN |
| +010+ | 6.52 | Atlee Hammaker | 172.3 | SFN |
| +019+ | 5.36 | Bob Welch | 197.3 | LAN |
| +021+ | 5.19 | Mike Boddicker | 171.7 | BAL |
| +024+ | 4.93 | Scott McGregor | 250.3 | BAL |
| +026+ | 4.76 | Alejandro Pena | 172 | LAN |
| +028+ | 4.66 | Dave Stieb | 269.3 | TOR |
| +030+ | 4.58 | Jerry Reuss | 214.3 | LAN |
| +032+ | 4.55 | Steve Carlton | 276.7 | PHI |
| +033+ | 4.51 | Rick Honeycutt | 207.7 | TOT |
| +041+ | 4.07 | Nolan Ryan | 189.3 | HOU |
| +042+ | 4.04 | Charlie Hough | 245 | TEX |
| +043+ | 4.03 | Craig McMurtry | 220.3 | ATL |
| +045+ | 3.94 | Bryn Smith | 146.3 | WAS |
| +046+ | 3.9 | Steve Rogers | 262 | WAS |
| +047+ | 3.89 | Rick Rhoden | 236.3 | PIT |
| +052+ | 3.7 | Matt Young | 200 | SEA |
| +056+ | 3.45 | Joe Price | 144.7 | CIN |
| +057+ | 3.44 | Dave Stewart | 127.3 | TOT |
| +060+ | 3.4 | Jack Morris | 272.7 | DET |
| +064+ | 3.31 | Richard Dotson | 229.7 | CHA |
| +071+ | 3.2 | Larry McWilliams | 233.3 | PIT |
| +072+ | 3.13 | Mark Thurmond | 109.7 | SDN |
| +073+ | 3.08 | Charlie Lea | 207.7 | WAS |
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