| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tommy John | NYA | 7.98 | 197907250_ANA_NYA |
| Nolan Ryan | ANA | 4.55 | 197907250_ANA_NYA |
| Craig Swan | NYN | 2.72 | 197907250_NYN_SFN |
| Jim Slaton | MIL | 2.46 | 197907250_MIL_DET |
| Tom Seaver | CIN | 2.39 | 197907250_CIN_PIT |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Phil Huffman | TOR | -4.24 | 197907270_DET_TOR |
| Vida Blue | SFN | -3.2 | 197907270_SFN_SDN |
| Dock Ellis | NYN | -2.26 | 197907270_CHN_NYN |
| Moose Haas | MIL | -2.25 | 197907260_MIL_DET |
| Larry Gura | KCA | -1.65 | 197907260_KCA_CHA |
Based on accumulated WAA for this season up to 1979-07-27.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +004+ | 6.02 | Steve Rogers | 164 | WAS |
| +007+ | 5.63 | Gaylord Perry | 177 | SDN |
| +009+ | 5.32 | Ron Guidry | 144.3 | NYA |
| +010+ | 5.18 | Tommy John | 174.3 | NYA |
| +012+ | 4.79 | Nolan Ryan | 150.3 | ANA |
| +013+ | 4.7 | Mike LaCoss | 139 | CIN |
| +022+ | 4.01 | Jim Slaton | 143.3 | MIL |
| +026+ | 3.72 | Joaquin Andujar | 131.7 | HOU |
| +028+ | 3.7 | Burt Hooton | 158.7 | LAN |
| +030+ | 3.47 | Bob Shirley | 118 | SDN |
| +033+ | 3.35 | Craig Swan | 167.7 | NYN |
| +042+ | 3.06 | Silvio Martinez | 129.3 | SLN |
| +044+ | 3.05 | Dennis Eckersley | 155 | BOS |
| +053+ | 2.68 | Rick Wise | 141.7 | CLE |
| +056+ | 2.66 | Phil Niekro | 210 | ATL |
| +058+ | 2.51 | Joe Niekro | 168 | HOU |
| +059+ | 2.5 | Ken Forsch | 116.3 | HOU |
| +070+ | 2.29 | Steve Comer | 153 | TEX |
| +073+ | 2.19 | Tom Seaver | 128 | CIN |
| +075+ | 2.17 | Mike Caldwell | 166.3 | MIL |
| +076+ | 2.12 | Dennis Martinez | 190.7 | BAL |
| +080+ | 2.1 | Bill Travers | 123 | MIL |
| +083+ | 2.05 | Tom Hume | 115.3 | CIN |
| +082+ | 2.05 | Jim Palmer | 107 | BAL |
| +086+ | 2.01 | Dan Schatzeder | 89.3 | WAS |
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