| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jim Palmer | BAL | 10.36 | 197805070_MIN_BAL |
| Frank Tanana | ANA | 6.79 | 197805090_ANA_DET |
| Tommy John | LAN | 4.04 | 197805070_LAN_PIT |
| Jerry Koosman | NYN | 2.8 | 197805090_NYN_CIN |
| Steve Rogers | WAS | 2.66 | 197805091_WAS_ATL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Dick Pole | SEA | -4.12 | 197805070_TOR_SEA |
| Tom Hume | CIN | -2.64 | 197805090_NYN_CIN |
| Paul Thormodsgard | MIN | -2.23 | 197805090_MIN_NYA |
| Jim Hunter | NYA | -1.73 | 197805090_MIN_NYA |
| Dick Ruthven | ATL | -1.14 | 197805091_WAS_ATL |
Based on accumulated WAA for this season up to 1978-05-09.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 2.52 | Ross Grimsley | 52.3 | WAS |
| +003+ | 2.36 | Nolan Ryan | 50 | ANA |
| +006+ | 2.2 | Ron Guidry | 42.3 | NYA |
| +007+ | 2.13 | Rick Reuschel | 54.3 | CHN |
| +009+ | 2.1 | John Henry Johnson | 37.7 | OAK |
| +010+ | 2.06 | John Denny | 49.3 | SLN |
| +013+ | 1.9 | Rick Rhoden | 40.3 | LAN |
| +016+ | 1.8 | Paul Splittorff | 54.7 | KCA |
| +021+ | 1.57 | Ray Burris | 50.3 | CHN |
| +023+ | 1.55 | Manny Sarmiento | 28.3 | CIN |
| +024+ | 1.52 | Joaquin Andujar | 43.7 | HOU |
| +026+ | 1.51 | Jim Palmer | 40.3 | BAL |
| +025+ | 1.51 | Dave Rozema | 32.3 | DET |
| +028+ | 1.5 | Pete Broberg | 38 | OAK |
| +032+ | 1.45 | Bob Knepper | 44 | SFN |
| +033+ | 1.43 | John Montefusco | 48.7 | SFN |
| +034+ | 1.42 | Gaylord Perry | 37.3 | SDN |
| +038+ | 1.37 | Steve Carlton | 41.7 | PHI |
| +042+ | 1.3 | Bill Lee | 49 | BOS |
| +043+ | 1.29 | Mike Bruhert | 29.7 | NYN |
| XXXXX | 1.23 | Rick Langford | 32.3 | OAK |
| XXXXX | 1.18 | Bob Owchinko | 37 | SDN |
| XXXXX | 1.15 | Ferguson Jenkins | 40.3 | TEX |
| XXXXX | 1.14 | Jim Barr | 40.3 | SFN |
| XXXXX | 1.05 | Fred Norman | 47.3 | CIN |
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