| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bert Blyleven | CLE | 3.33 | 198409260_SEA_CLE |
| Frank Viola | MIN | 2.97 | 198409280_MIN_CLE |
| Fernando Valenzuela | LAN | 2.76 | 198409260_HOU_LAN |
| Ray Burris | OAK | 2.35 | 198409280_KCA_OAK |
| Doyle Alexander | TOR | 2.18 | 198409260_TOR_BOS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jim Clancy | TOR | -5.93 | 198409280_TOR_MIL |
| Mike Moore | SEA | -4.76 | 198409280_CHA_SEA |
| Dave Stewart | TEX | -2.67 | 198409280_ANA_TEX |
| Jim Slaton | ANA | -2.48 | 198409280_ANA_TEX |
| Dick Ruthven | CHN | -1.75 | 198409260_CHN_PIT |
Based on accumulated WAA for this season up to 1984-09-28.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +008+ | 6.35 | Mike Boddicker | 254.3 | BAL |
| +009+ | 6.25 | Dwight Gooden | 218.3 | NYN |
| +011+ | 6.17 | Alejandro Pena | 201 | LAN |
| +013+ | 5.89 | Dave Stieb | 258.3 | TOR |
| +019+ | 5.47 | Bert Blyleven | 236.7 | CLE |
| +022+ | 5.06 | Rick Rhoden | 230.7 | PIT |
| +025+ | 4.92 | Charlie Lea | 224.3 | WAS |
| +026+ | 4.88 | Joe Niekro | 244.3 | HOU |
| +033+ | 4.56 | Orel Hershiser | 180.3 | LAN |
| +034+ | 4.53 | Fernando Valenzuela | 261 | LAN |
| +036+ | 4.34 | John Candelaria | 184 | PIT |
| +037+ | 4.32 | John Denny | 146.3 | PHI |
| +039+ | 4.23 | Ricky Mahler | 215 | ATL |
| +040+ | 4.18 | Larry McWilliams | 220.7 | PIT |
| +043+ | 4.09 | Buddy Black | 255.7 | KCA |
| +044+ | 4.04 | Rick Honeycutt | 184 | LAN |
| +047+ | 3.83 | Doyle Alexander | 254 | TOR |
| +051+ | 3.73 | Frank Viola | 257.7 | MIN |
| +053+ | 3.7 | Storm Davis | 224.7 | BAL |
| +055+ | 3.62 | Ray Burris | 211.3 | OAK |
| +057+ | 3.57 | Dan Schatzeder | 136.3 | WAS |
| +065+ | 3.36 | Mark Thurmond | 178.7 | SDN |
| +066+ | 3.34 | Bob Knepper | 234 | HOU |
| +068+ | 3.28 | Nolan Ryan | 183.7 | HOU |
| +073+ | 3.16 | Frank Tanana | 238.7 | TEX |
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