| Starter | Tm | Tier | Game |
|---|---|---|---|
| Frank Tanana | ANA | 9.03 | 197805300_ANA_CHA |
| Rick Reuschel | CHN | 6.06 | 197805300_CHN_WAS |
| J.R. Richard | HOU | 5.19 | 197805300_SFN_HOU |
| Steve Carlton | PHI | 4.47 | 197805300_PIT_PHI |
| Tommy John | LAN | 4.31 | 197805290_SDN_LAN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dick Pole | SEA | -4.73 | 197805290_SEA_KCA |
| Tom Hume | CIN | -4.6 | 197805300_CIN_ATL |
| Jerry Garvin | TOR | -2.31 | 197805300_TOR_BOS |
| Pete Falcone | SLN | -1.87 | 197805292_SLN_NYN |
| Jerry Augustine | MIL | -1.27 | 197805290_OAK_MIL |
Based on accumulated WAA for this season up to 1978-05-31.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 3.2 | Rick Reuschel | 89.3 | CHN |
| +003+ | 3.18 | Bob Knepper | 85 | SFN |
| +004+ | 3.17 | Ron Guidry | 76.7 | NYA |
| +006+ | 3.07 | John Henry Johnson | 65.7 | OAK |
| +012+ | 2.45 | Steve Rogers | 89 | WAS |
| +014+ | 2.41 | Ross Grimsley | 83.7 | WAS |
| +013+ | 2.41 | Bob Forsch | 86 | SLN |
| +015+ | 2.36 | Jim Palmer | 77.3 | BAL |
| +018+ | 2.26 | Paul Splittorff | 95.3 | KCA |
| +019+ | 2.24 | Randy Jones | 74.3 | SDN |
| +023+ | 2.07 | Geoff Zahn | 74.3 | MIN |
| +027+ | 1.9 | Vida Blue | 84.7 | SFN |
| +028+ | 1.88 | Steve Carlton | 78 | PHI |
| +029+ | 1.85 | David Clyde | 33 | CLE |
| +031+ | 1.83 | Frank Tanana | 84.3 | ANA |
| +032+ | 1.82 | Manny Sarmiento | 44 | CIN |
| +035+ | 1.78 | Don Robinson | 74.3 | PIT |
| +036+ | 1.75 | Joaquin Andujar | 59.7 | HOU |
| +039+ | 1.65 | Phil Niekro | 99 | ATL |
| +041+ | 1.64 | Craig Swan | 73 | NYN |
| +046+ | 1.58 | Matt Keough | 58 | OAK |
| +049+ | 1.56 | Tommy John | 79 | LAN |
| +051+ | 1.51 | John Denny | 78 | SLN |
| +054+ | 1.5 | Bill Bonham | 52.7 | CIN |
| +052+ | 1.5 | Fred Norman | 72.7 | CIN |
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