| Starter | Tm | Tier | Game |
|---|---|---|---|
| Frank Tanana | ANA | 6.79 | 197805140_ANA_CLE |
| Ron Guidry | NYA | 3.33 | 197805130_NYA_KCA |
| Tommy John | LAN | 3.04 | 197805130_CHN_LAN |
| Bert Blyleven | PIT | 3.03 | 197805150_PIT_LAN |
| J.R. Richard | HOU | 2.93 | 197805150_PHI_HOU |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dave Lemanczyk | TOR | -4.8 | 197805130_SEA_TOR |
| Dick Pole | SEA | -4.33 | 197805130_SEA_TOR |
| Tom Hume | CIN | -3.25 | 197805140_CIN_PHI |
| Scott McGregor | BAL | -2.21 | 197805130_BAL_TEX |
| Paul Thormodsgard | MIN | -2.2 | 197805140_BOS_MIN |
Based on accumulated WAA for this season up to 1978-05-15.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 2.62 | Ross Grimsley | 58.3 | WAS |
| +004+ | 2.5 | Ron Guidry | 50.3 | NYA |
| +005+ | 2.43 | Rick Reuschel | 61 | CHN |
| +007+ | 2.33 | John Henry Johnson | 42.3 | OAK |
| +008+ | 2.27 | Nolan Ryan | 58 | ANA |
| +009+ | 2.2 | Gaylord Perry | 54.3 | SDN |
| +010+ | 2.17 | Bob Knepper | 53 | SFN |
| +014+ | 1.97 | Bob Forsch | 64 | SLN |
| +015+ | 1.96 | Steve Carlton | 50.7 | PHI |
| +020+ | 1.85 | Joaquin Andujar | 50.7 | HOU |
| +022+ | 1.76 | Don Robinson | 53 | PIT |
| +023+ | 1.75 | Paul Splittorff | 61.3 | KCA |
| +028+ | 1.66 | Manny Sarmiento | 29.3 | CIN |
| +030+ | 1.63 | Matt Keough | 44 | OAK |
| +033+ | 1.55 | Dave Rozema | 40 | DET |
| +034+ | 1.55 | Bob Sykes | 18 | DET |
| +037+ | 1.49 | Rick Waits | 44.7 | CLE |
| +039+ | 1.46 | Bill Lee | 55.3 | BOS |
| +040+ | 1.45 | Randy Jones | 53 | SDN |
| +041+ | 1.45 | Steve Rogers | 57 | WAS |
| +047+ | 1.29 | Fred Norman | 54.7 | CIN |
| XXXXX | 1.22 | Geoff Zahn | 53.3 | MIN |
| XXXXX | 1.22 | Ferguson Jenkins | 48.3 | TEX |
| XXXXX | 1.19 | Craig Swan | 48.7 | NYN |
| XXXXX | 1.16 | Tommy John | 54.7 | LAN |
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