| Starter | Tm | Tier | Game |
|---|---|---|---|
| Steve Carlton | PHI | 9.36 | 198005310_PHI_CHN |
| Steve Rogers | WAS | 9.05 | 198005310_WAS_SLN |
| J.R. Richard | HOU | 8.21 | 198005310_HOU_SFN |
| Craig Swan | NYN | 6.85 | 198005310_NYN_PIT |
| Mike Caldwell | MIL | 5.6 | 198005310_MIL_BOS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jesse Jefferson | TOR | -2.89 | 198005310_TOR_NYA |
| Dan Spillner | CLE | -2.19 | 198005310_SEA_CLE |
| Pete Falcone | NYN | -2.12 | 198006010_NYN_PIT |
| Mike Parrott | SEA | -2.02 | 198005310_SEA_CLE |
| Steve McCatty | OAK | -1.6 | 198005300_OAK_TEX |
Based on accumulated WAA for this season up to 1980-06-01.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 4.7 | Mike Norris | 83 | OAK |
| +002+ | 4.54 | Steve Carlton | 93 | PHI |
| +004+ | 4.19 | Larry Gura | 90.7 | KCA |
| +005+ | 3.89 | Britt Burns | 73.3 | CHA |
| +006+ | 3.66 | J.R. Richard | 78 | HOU |
| +009+ | 2.77 | Bob Welch | 67 | LAN |
| +010+ | 2.47 | Dave Stieb | 73.7 | TOR |
| +012+ | 2.41 | Randy Jones | 77.3 | SDN |
| +014+ | 2.3 | Craig Swan | 66.7 | NYN |
| +015+ | 2.28 | David Palmer | 51 | WAS |
| +016+ | 2.23 | Pete Vuckovich | 78.7 | SLN |
| +017+ | 2.2 | Ray Burris | 61 | NYN |
| +018+ | 2.2 | Floyd Bannister | 66.3 | SEA |
| +022+ | 2.1 | Vida Blue | 90 | SFN |
| +025+ | 2.07 | Rick Honeycutt | 62.7 | SEA |
| +035+ | 1.8 | Jim Bibby | 81.7 | PIT |
| +038+ | 1.79 | Matt Keough | 81 | OAK |
| +040+ | 1.75 | Frank Pastore | 73.3 | CIN |
| +041+ | 1.74 | Don Sutton | 58 | LAN |
| +042+ | 1.73 | Rick Matula | 57.3 | ATL |
| +044+ | 1.72 | Danny Darwin | 42.3 | TEX |
| +051+ | 1.65 | Jim Clancy | 64.7 | TOR |
| +056+ | 1.59 | Nolan Ryan | 69 | HOU |
| +065+ | 1.47 | Mike Krukow | 71.3 | CHN |
| +066+ | 1.46 | Dave LaRoche | 36.7 | ANA |
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