| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rudy May | NYA | 6.59 | 198105140_OAK_NYA |
| Jerry Reuss | LAN | 6.17 | 198105130_WAS_LAN |
| Phil Niekro | ATL | 3.66 | 198105120_PIT_ATL |
| Tom Seaver | CIN | 3.17 | 198105130_CHN_CIN |
| Scott Sanderson | WAS | 2.97 | 198105130_WAS_LAN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mike Torrez | BOS | -5.56 | 198105130_BOS_MIN |
| Bob Sykes | SLN | -2.62 | 198105140_SLN_HOU |
| Paul Splittorff | KCA | -2.34 | 198105140_TEX_KCA |
| John Curtis | SDN | -1.68 | 198105140_NYN_SDN |
| Ray Burris | WAS | -1.55 | 198105120_WAS_LAN |
Based on accumulated WAA for this season up to 1981-05-14.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 4.95 | Fernando Valenzuela | 72 | LAN |
| +003+ | 2.61 | Bob Knepper | 45.7 | HOU |
| +004+ | 2.41 | Doyle Alexander | 47.7 | SFN |
| +005+ | 2.39 | Steve McCatty | 56 | OAK |
| +008+ | 2.1 | Bryan Clark | 41.3 | SEA |
| +012+ | 1.88 | Tom Seaver | 61.3 | CIN |
| +011+ | 1.88 | Vida Blue | 54 | SFN |
| +013+ | 1.81 | Nolan Ryan | 35.7 | HOU |
| +014+ | 1.78 | Jerry Reuss | 43 | LAN |
| +016+ | 1.68 | Matt Keough | 55 | OAK |
| +017+ | 1.65 | Milt Wilcox | 52.3 | DET |
| +020+ | 1.61 | Bert Blyleven | 44 | CLE |
| +022+ | 1.49 | Phil Niekro | 44 | ATL |
| +024+ | 1.46 | Geoff Zahn | 61.3 | ANA |
| +027+ | 1.36 | Gaylord Perry | 53.3 | ATL |
| +029+ | 1.33 | Scott Sanderson | 42.3 | WAS |
| +030+ | 1.31 | Len Barker | 32.3 | CLE |
| +032+ | 1.29 | Andy Rincon | 35.7 | SLN |
| +033+ | 1.27 | Brian Kingman | 42 | OAK |
| XXXXX | 1.18 | Joe Niekro | 54 | HOU |
| XXXXX | 1.1 | Larry Gura | 54 | KCA |
| XXXXX | 1.1 | Burt Hooton | 47.7 | LAN |
| XXXXX | 1.08 | Rudy May | 60.7 | NYA |
| XXXXX | 1.07 | Steve Trout | 33.7 | CHA |
| XXXXX | 1.05 | Juan Eichelberger | 46.3 | SDN |
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