| Starter | Tm | Tier | Game |
|---|---|---|---|
| Larry Gura | KCA | 4.16 | 198105110_TEX_KCA |
| Joe Niekro | HOU | 3.83 | 198105100_HOU_CIN |
| Phil Niekro | ATL | 3.66 | 198105120_PIT_ATL |
| Mike Flanagan | BAL | 1.86 | 198105100_BAL_TEX |
| Burt Hooton | LAN | 1.85 | 198105120_WAS_LAN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Wayne Garland | CLE | -2.09 | 198105100_CLE_MIN |
| Ray Burris | WAS | -1.55 | 198105120_WAS_LAN |
| Mike LaCoss | CIN | -1.21 | 198105110_HOU_CIN |
| Frank Tanana | BOS | -1.2 | 198105100_BOS_TOR |
| Jerry Gleaton | SEA | -0.95 | 198105100_NYA_SEA |
Based on accumulated WAA for this season up to 1981-05-12.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 4.62 | Fernando Valenzuela | 63 | LAN |
| +003+ | 2.59 | Bob Knepper | 45.7 | HOU |
| +004+ | 2.4 | Doyle Alexander | 47.7 | SFN |
| +005+ | 2.36 | Steve McCatty | 56 | OAK |
| +009+ | 1.96 | Jerry Reuss | 35 | LAN |
| +010+ | 1.88 | Matt Keough | 47.3 | OAK |
| +011+ | 1.79 | Nolan Ryan | 35.7 | HOU |
| +012+ | 1.75 | Tom Seaver | 52.3 | CIN |
| +015+ | 1.71 | Bert Blyleven | 44 | CLE |
| +018+ | 1.63 | Milt Wilcox | 52.3 | DET |
| +020+ | 1.52 | Phil Niekro | 44 | ATL |
| +023+ | 1.45 | Bryan Clark | 33.7 | SEA |
| +024+ | 1.4 | Gaylord Perry | 53.3 | ATL |
| +025+ | 1.39 | Len Barker | 32.3 | CLE |
| +027+ | 1.35 | Rudy May | 54 | NYA |
| +029+ | 1.31 | Tommy John | 51 | NYA |
| +032+ | 1.26 | Andy Rincon | 35.7 | SLN |
| XXXXX | 1.25 | Brian Kingman | 42 | OAK |
| XXXXX | 1.21 | Vida Blue | 46 | SFN |
| XXXXX | 1.16 | Scott Sanderson | 35.3 | WAS |
| XXXXX | 1.15 | Joe Niekro | 54 | HOU |
| XXXXX | 1.14 | Steve Trout | 33.7 | CHA |
| XXXXX | 1.09 | Burt Hooton | 47.7 | LAN |
| XXXXX | 1.08 | Larry Gura | 54 | KCA |
| XXXXX | 1.03 | Juan Eichelberger | 46.3 | SDN |
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