| Starter | Tm | Tier | Game |
|---|---|---|---|
| J.R. Richard | HOU | 6.23 | 198005050_HOU_WAS |
| Gaylord Perry | TEX | 6.23 | 198005050_BOS_TEX |
| Craig Swan | NYN | 4.84 | 198005030_SDN_NYN |
| Steve Carlton | PHI | 4.82 | 198005050_ATL_PHI |
| Steve Rogers | WAS | 4.65 | 198005041_SFN_WAS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jesse Jefferson | TOR | -4.12 | 198005042_CLE_TOR |
| Bob Sykes | SLN | -3.78 | 198005040_HOU_SLN |
| Moose Haas | MIL | -2.83 | 198005030_MIL_CHA |
| Chuck Rainey | BOS | -2.14 | 198005030_BOS_KCA |
| Milt Wilcox | DET | -1.97 | 198005041_DET_OAK |
Based on accumulated WAA for this season up to 1980-05-05.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.31 | Mike Norris | 41 | OAK |
| +002+ | 2.37 | Steve Carlton | 49 | PHI |
| +003+ | 2.36 | Matt Keough | 44.3 | OAK |
| +004+ | 2.18 | Pete Redfern | 42.7 | MIN |
| +006+ | 1.97 | Floyd Bannister | 37.7 | SEA |
| +007+ | 1.82 | Larry Gura | 36.3 | KCA |
| +008+ | 1.81 | Mike Caldwell | 33.7 | MIL |
| +010+ | 1.7 | Dave Stieb | 39.3 | TOR |
| +011+ | 1.67 | Pete Vuckovich | 45.7 | SLN |
| +013+ | 1.64 | Joe Niekro | 38.7 | HOU |
| +015+ | 1.57 | Britt Burns | 30.3 | CHA |
| +018+ | 1.55 | Jon Matlack | 38.3 | TEX |
| +021+ | 1.53 | Charlie Leibrandt | 38 | CIN |
| +024+ | 1.48 | Rick Matula | 31.7 | ATL |
| +026+ | 1.45 | Mike Krukow | 34.3 | CHN |
| +028+ | 1.42 | Paul Mirabella | 29.3 | TOR |
| +030+ | 1.41 | Gary Lucas | 24 | SDN |
| +033+ | 1.38 | Frank Pastore | 36.3 | CIN |
| +035+ | 1.34 | Rick Honeycutt | 42.3 | SEA |
| XXXXX | 1.23 | Bob Welch | 30.3 | LAN |
| XXXXX | 1.23 | Ken Forsch | 36.3 | HOU |
| XXXXX | 1.23 | Tommy John | 38 | NYA |
| XXXXX | 1.22 | Gaylord Perry | 34.7 | TEX |
| XXXXX | 1.14 | Don Aase | 28.3 | ANA |
| XXXXX | 1.1 | David Palmer | 21.3 | WAS |
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