| Starter | Tm | Tier | Game |
|---|---|---|---|
| Frank Tanana | ANA | 7.52 | 197806040_BOS_ANA |
| Rick Reuschel | CHN | 5.78 | 197806040_ATL_CHN |
| J.R. Richard | HOU | 5.56 | 197806040_SLN_HOU |
| Steve Rogers | WAS | 4.68 | 197806040_SFN_WAS |
| Ron Guidry | NYA | 4.01 | 197806020_NYA_OAK |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dave Lemanczyk | TOR | -8.67 | 197806040_TEX_TOR |
| Dick Pole | SEA | -6.26 | 197806040_BAL_SEA |
| Jerry Augustine | MIL | -1.97 | 197806030_CLE_MIL |
| Pete Falcone | SLN | -1.61 | 197806031_SLN_HOU |
| Jack Billingham | DET | -1.53 | 197806020_MIN_DET |
Based on accumulated WAA for this season up to 1978-06-04.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 3.71 | Ron Guidry | 85 | NYA |
| +003+ | 3.66 | Bob Knepper | 93.3 | SFN |
| +005+ | 3.14 | Jim Palmer | 86.3 | BAL |
| +006+ | 3.09 | Rick Reuschel | 98.3 | CHN |
| +007+ | 2.85 | Paul Splittorff | 102.3 | KCA |
| +010+ | 2.68 | Steve Rogers | 97 | WAS |
| +012+ | 2.57 | Frank Tanana | 93 | ANA |
| +014+ | 2.51 | Ross Grimsley | 92.7 | WAS |
| +015+ | 2.43 | Bob Forsch | 86 | SLN |
| +016+ | 2.37 | Geoff Zahn | 80 | MIN |
| +018+ | 2.3 | John Henry Johnson | 69 | OAK |
| +022+ | 2.23 | Joaquin Andujar | 67.7 | HOU |
| +025+ | 2.13 | Matt Keough | 67 | OAK |
| +029+ | 2.07 | Randy Jones | 82 | SDN |
| +028+ | 2.07 | Manny Sarmiento | 47 | CIN |
| +035+ | 1.88 | Vida Blue | 84.7 | SFN |
| +036+ | 1.87 | Steve Carlton | 78 | PHI |
| +040+ | 1.83 | John Denny | 86.3 | SLN |
| +042+ | 1.8 | Don Robinson | 79.3 | PIT |
| +047+ | 1.67 | Bill Bonham | 59.7 | CIN |
| +048+ | 1.65 | Craig Swan | 73 | NYN |
| +049+ | 1.65 | Mike Flanagan | 93.3 | BAL |
| +055+ | 1.53 | Ed Figueroa | 81.7 | NYA |
| +057+ | 1.51 | Gaylord Perry | 78 | SDN |
| +060+ | 1.5 | Fred Norman | 80 | CIN |
_