| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rudy May | NYA | 6.46 | 198105080_NYA_SEA |
| Steve Carlton | PHI | 4.43 | 198105090_SDN_PHI |
| Jim Bibby | PIT | 3.94 | 198105080_PIT_SLN |
| Joe Niekro | HOU | 3.83 | 198105100_HOU_CIN |
| Fernando Valenzuela | LAN | 3.36 | 198105080_LAN_NYN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mike Torrez | BOS | -5.98 | 198105080_BOS_TOR |
| Rich Gale | KCA | -2.25 | 198105090_KCA_CHA |
| Wayne Garland | CLE | -2.09 | 198105100_CLE_MIN |
| Tim Lollar | SDN | -2.02 | 198105090_SDN_PHI |
| Mike Scott | NYN | -2 | 198105080_LAN_NYN |
Based on accumulated WAA for this season up to 1981-05-10.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 4.68 | Fernando Valenzuela | 63 | LAN |
| +003+ | 2.4 | Steve McCatty | 56 | OAK |
| +005+ | 2.12 | Bob Knepper | 36.7 | HOU |
| +008+ | 1.99 | Jerry Reuss | 35 | LAN |
| +009+ | 1.93 | Larry Gura | 48.3 | KCA |
| +010+ | 1.91 | Matt Keough | 47.3 | OAK |
| +011+ | 1.87 | Doyle Alexander | 40.7 | SFN |
| +012+ | 1.81 | Tom Seaver | 52.3 | CIN |
| +016+ | 1.48 | Bryan Clark | 33.7 | SEA |
| +019+ | 1.41 | Rudy May | 54 | NYA |
| +020+ | 1.41 | Len Barker | 32.3 | CLE |
| +023+ | 1.37 | Tommy John | 51 | NYA |
| +024+ | 1.35 | Milt Wilcox | 43.3 | DET |
| +028+ | 1.3 | Andy Rincon | 35.7 | SLN |
| +029+ | 1.27 | Brian Kingman | 42 | OAK |
| +030+ | 1.26 | Vida Blue | 46 | SFN |
| XXXXX | 1.21 | Joe Niekro | 54 | HOU |
| XXXXX | 1.21 | Bert Blyleven | 35 | CLE |
| XXXXX | 1.18 | Scott Sanderson | 35.3 | WAS |
| XXXXX | 1.16 | Gaylord Perry | 44.3 | ATL |
| XXXXX | 1.1 | Nolan Ryan | 26.7 | HOU |
| XXXXX | 1.01 | Jerry Augustine | 18 | MIL |
| XXXXX | 0.97 | Geoff Zahn | 52.3 | ANA |
| XXXXX | 0.96 | Steve Trout | 28.7 | CHA |
| XXXXX | 0.96 | Rick Rhoden | 42 | PIT |
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