| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mike Caldwell | MIL | 10.44 | 197809300_MIL_OAK |
| Jon Matlack | TEX | 6.93 | 197809300_TEX_SEA |
| Phil Niekro | ATL | 4.48 | 197809300_ATL_CIN |
| Gaylord Perry | SDN | 3.5 | 197810010_LAN_SDN |
| Vida Blue | SFN | 3.19 | 197809300_SFN_HOU |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Nino Espinosa | NYN | -4.04 | 197809291_NYN_CHN |
| Glenn Abbott | SEA | -3.03 | 197810010_TEX_SEA |
| Jesse Jefferson | TOR | -1.6 | 197809300_TOR_BOS |
| Bill Travers | MIL | -1.54 | 197809290_MIL_OAK |
| John Urrea | SLN | -1.34 | 197809290_WAS_SLN |
Based on accumulated WAA for this season up to 1978-10-01.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 12.08 | Ron Guidry | 267.3 | NYA |
| +004+ | 9.11 | Mike Caldwell | 293.3 | MIL |
| +006+ | 8.46 | Jim Palmer | 296 | BAL |
| +007+ | 8.45 | Jon Matlack | 270 | TEX |
| +015+ | 6.25 | Phil Niekro | 334.3 | ATL |
| +017+ | 6.15 | Bob Knepper | 260 | SFN |
| +019+ | 6.11 | Gaylord Perry | 260.7 | SDN |
| +021+ | 5.87 | Craig Swan | 207.3 | NYN |
| +022+ | 5.87 | Dave Goltz | 220.3 | MIN |
| +026+ | 5.37 | Burt Hooton | 236 | LAN |
| +029+ | 5.31 | Pete Vuckovich | 198.3 | SLN |
| +030+ | 5.14 | Vida Blue | 258 | SFN |
| +033+ | 5 | Larry Gura | 221.7 | KCA |
| +035+ | 4.93 | Steve Carlton | 247.3 | PHI |
| +036+ | 4.82 | Randy Jones | 253 | SDN |
| +040+ | 4.62 | Tom Seaver | 259.7 | CIN |
| +042+ | 4.32 | Bob Welch | 111.3 | LAN |
| +047+ | 3.97 | John Denny | 234 | SLN |
| +048+ | 3.93 | Ed Figueroa | 253 | NYA |
| +054+ | 3.82 | Ross Grimsley | 263 | WAS |
| +055+ | 3.79 | Dennis Eckersley | 268.3 | BOS |
| +059+ | 3.73 | Bert Blyleven | 243.7 | PIT |
| +060+ | 3.7 | Ed Halicki | 199 | SFN |
| +061+ | 3.68 | J.R. Richard | 275.3 | HOU |
| +063+ | 3.67 | Steve Comer | 117.3 | TEX |
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