| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jim Palmer | BAL | 9.56 | 197805030_TEX_BAL |
| Frank Tanana | ANA | 7.27 | 197805030_DET_ANA |
| Bert Blyleven | PIT | 4.3 | 197805050_LAN_PIT |
| J.R. Richard | HOU | 3.89 | 197805030_HOU_WAS |
| Doug Rau | LAN | 2.89 | 197805030_LAN_CHN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tom Hume | CIN | -2.32 | 197805050_WAS_CIN |
| Jack Billingham | DET | -1.92 | 197805050_DET_OAK |
| Jesse Jefferson | TOR | -1.72 | 197805050_TOR_SEA |
| Jerry Augustine | MIL | -1.2 | 197805030_CHA_MIL |
| Tommy Boggs | ATL | -0.93 | 197805050_HOU_ATL |
Based on accumulated WAA for this season up to 1978-05-05.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 2.32 | Nolan Ryan | 50 | ANA |
| +004+ | 2.23 | Ron Guidry | 42.3 | NYA |
| +005+ | 2.19 | Jim Palmer | 38.7 | BAL |
| +008+ | 2.05 | John Henry Johnson | 37.7 | OAK |
| +011+ | 1.96 | Ross Grimsley | 44.3 | WAS |
| +012+ | 1.9 | Pete Broberg | 33.3 | OAK |
| +013+ | 1.85 | Rick Rhoden | 40.3 | LAN |
| +014+ | 1.85 | Rick Reuschel | 48.3 | CHN |
| +015+ | 1.78 | Rick Waits | 34 | CLE |
| +020+ | 1.49 | Dave Rozema | 32.3 | DET |
| +022+ | 1.46 | Tommy John | 40.7 | LAN |
| +024+ | 1.44 | Paul Splittorff | 46.7 | KCA |
| +025+ | 1.42 | Pat Zachry | 34 | NYN |
| +030+ | 1.36 | Bill Lee | 40 | BOS |
| +031+ | 1.35 | Craig Swan | 35.7 | NYN |
| +033+ | 1.33 | Ray Burris | 42.3 | CHN |
| +038+ | 1.27 | Bob Owchinko | 33.7 | SDN |
| XXXXX | 1.23 | John Denny | 40.3 | SLN |
| XXXXX | 1.19 | Rick Langford | 32.3 | OAK |
| XXXXX | 1.16 | John Montefusco | 40.3 | SFN |
| XXXXX | 1.16 | Jim Barr | 40.3 | SFN |
| XXXXX | 1.11 | Matt Keough | 31.3 | OAK |
| XXXXX | 0.99 | Steve Carlton | 32.7 | PHI |
| XXXXX | 0.99 | Jerry Koosman | 41.3 | NYN |
| XXXXX | 0.98 | Gaylord Perry | 30.3 | SDN |
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