| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ron Guidry | NYA | 16.7 | 197809201_NYA_TOR |
| Mike Caldwell | MIL | 8.87 | 197809190_MIL_NYA |
| Jim Palmer | BAL | 6.59 | 197809190_BAL_CLE |
| Dave Goltz | MIN | 4.16 | 197809200_TEX_MIN |
| Larry Gura | KCA | 2.57 | 197809180_KCA_SEA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Nino Espinosa | NYN | -2.64 | 197809190_NYN_SLN |
| Bill Travers | MIL | -1.43 | 197809180_MIL_NYA |
| Steve Stone | CHA | -1.15 | 197809191_CHA_OAK |
| Mike Willis | TOR | -0.96 | 197809201_NYA_TOR |
| Jim Slaton | DET | -0.9 | 197809190_BOS_DET |
Based on accumulated WAA for this season up to 1978-09-20.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 10.88 | Ron Guidry | 249.3 | NYA |
| +003+ | 9.4 | Mike Caldwell | 278 | MIL |
| +006+ | 7.77 | Jim Palmer | 279 | BAL |
| +007+ | 7.23 | Jon Matlack | 244 | TEX |
| +014+ | 5.85 | Dave Goltz | 211.3 | MIN |
| +017+ | 5.78 | Phil Niekro | 309.3 | ATL |
| +019+ | 5.58 | Craig Swan | 193.3 | NYN |
| +023+ | 5.43 | Burt Hooton | 221 | LAN |
| +026+ | 5.21 | Pete Vuckovich | 186.3 | SLN |
| +027+ | 5.15 | Randy Jones | 248 | SDN |
| +030+ | 4.78 | Vida Blue | 243 | SFN |
| +033+ | 4.74 | Gaylord Perry | 236 | SDN |
| +034+ | 4.7 | Bob Knepper | 242 | SFN |
| +039+ | 4.37 | Tom Seaver | 244.7 | CIN |
| +040+ | 4.32 | Steve Carlton | 231.3 | PHI |
| +042+ | 4.06 | Bert Blyleven | 228.3 | PIT |
| +048+ | 3.8 | Steve Comer | 103.3 | TEX |
| +053+ | 3.6 | Ed Figueroa | 233 | NYA |
| +054+ | 3.52 | Larry Gura | 200.7 | KCA |
| +055+ | 3.5 | Ferguson Jenkins | 227.3 | TEX |
| +056+ | 3.44 | Dave Rozema | 195.3 | DET |
| +058+ | 3.33 | Bob Welch | 99.3 | LAN |
| +064+ | 3.15 | J.R. Richard | 263.3 | HOU |
| +067+ | 3.12 | John Denny | 218 | SLN |
| +070+ | 3.06 | Hal Dues | 99 | WAS |
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