| Starter | Tm | Tier | Game |
|---|---|---|---|
| Steve Carlton | PHI | 11.17 | 198006040_PHI_PIT |
| Ron Guidry | NYA | 6.58 | 198006020_NYA_KCA |
| Steve Rogers | WAS | 6.07 | 198006040_CHN_WAS |
| Phil Niekro | ATL | 4.82 | 198006020_ATL_SFN |
| Gaylord Perry | TEX | 3.93 | 198006030_TEX_CHA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ken Kravec | CHA | -2.35 | 198006030_TEX_CHA |
| Len Barker | CLE | -1.68 | 198006030_OAK_CLE |
| Larry McWilliams | ATL | -1.57 | 198006030_ATL_SFN |
| Jim Kaat | SLN | -1.21 | 198006040_SLN_NYN |
| Lynn McGlothen | CHN | -1.18 | 198006040_CHN_WAS |
Based on accumulated WAA for this season up to 1980-06-04.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 4.72 | Steve Carlton | 102 | PHI |
| +002+ | 4.7 | Mike Norris | 83 | OAK |
| +004+ | 3.78 | Britt Burns | 73.3 | CHA |
| +005+ | 3.75 | Larry Gura | 98 | KCA |
| +006+ | 3.66 | J.R. Richard | 78 | HOU |
| +008+ | 3.23 | Bob Welch | 74.7 | LAN |
| +011+ | 2.54 | Rick Matula | 66.3 | ATL |
| +013+ | 2.49 | Vida Blue | 97 | SFN |
| +016+ | 2.42 | Randy Jones | 84.7 | SDN |
| +021+ | 2.26 | Craig Swan | 66.7 | NYN |
| +025+ | 2.18 | Pete Vuckovich | 78.7 | SLN |
| +026+ | 2.14 | Don Sutton | 65 | LAN |
| +027+ | 2.1 | Rick Honeycutt | 72 | SEA |
| +030+ | 1.99 | Jim Clancy | 73.7 | TOR |
| +034+ | 1.95 | David Palmer | 55 | WAS |
| +039+ | 1.82 | John Fulgham | 47.3 | SLN |
| +040+ | 1.81 | Ray Burris | 64 | NYN |
| +041+ | 1.78 | Jim Bibby | 81.7 | PIT |
| +044+ | 1.75 | Frank Pastore | 73.3 | CIN |
| +048+ | 1.69 | Moose Haas | 76.3 | MIL |
| +051+ | 1.68 | Danny Darwin | 42.3 | TEX |
| +061+ | 1.59 | Nolan Ryan | 76 | HOU |
| +063+ | 1.57 | Dave Stieb | 76 | TOR |
| +065+ | 1.55 | Mike Krukow | 77.7 | CHN |
| +070+ | 1.5 | Jon Matlack | 78 | TEX |
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