| Starter | Tm | Tier | Game |
|---|---|---|---|
| John Denny | PHI | 8.9 | 198309260_PHI_CHN |
| Bob Welch | LAN | 4.64 | 198309240_LAN_ATL |
| Dave Stieb | TOR | 4.21 | 198309250_TOR_OAK |
| Nolan Ryan | HOU | 3 | 198309250_SFN_HOU |
| Steve Rogers | WAS | 2.2 | 198309260_WAS_SLN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Frank Viola | MIN | -6.1 | 198309240_MIN_KCA |
| Dennis Martinez | BAL | -5.18 | 198309240_BAL_MIL |
| Frank Pastore | CIN | -3.15 | 198309260_LAN_CIN |
| Bob Forsch | SLN | -1.74 | 198309260_WAS_SLN |
| Mike Moore | SEA | -1.41 | 198309240_SEA_TEX |
Based on accumulated WAA for this season up to 1983-09-26.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 8.08 | John Denny | 238.7 | PHI |
| +004+ | 7.44 | Mario Soto | 265.3 | CIN |
| +010+ | 6.52 | Atlee Hammaker | 172.3 | SFN |
| +019+ | 5.34 | Bob Welch | 197.3 | LAN |
| +021+ | 5.18 | Mike Boddicker | 171.7 | BAL |
| +024+ | 4.93 | Scott McGregor | 250.3 | BAL |
| +027+ | 4.74 | Alejandro Pena | 172 | LAN |
| +028+ | 4.63 | Dave Stieb | 269.3 | TOR |
| +031+ | 4.56 | Jerry Reuss | 214.3 | LAN |
| +032+ | 4.54 | Steve Carlton | 276.7 | PHI |
| +034+ | 4.5 | Rick Honeycutt | 207.7 | TOT |
| +039+ | 4.06 | Nolan Ryan | 189.3 | HOU |
| +040+ | 4.04 | Charlie Hough | 245 | TEX |
| +041+ | 4.02 | Craig McMurtry | 220.3 | ATL |
| +043+ | 3.94 | Bryn Smith | 146.3 | WAS |
| +046+ | 3.88 | Rick Rhoden | 236.3 | PIT |
| +051+ | 3.72 | Steve Rogers | 267 | WAS |
| +052+ | 3.69 | Matt Young | 200 | SEA |
| +057+ | 3.44 | Joe Price | 144.7 | CIN |
| +058+ | 3.43 | Dave Stewart | 127.3 | TOT |
| +061+ | 3.39 | Jack Morris | 272.7 | DET |
| +065+ | 3.3 | Richard Dotson | 229.7 | CHA |
| +071+ | 3.19 | 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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