| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rudy May | NYA | 6.46 | 198105080_NYA_SEA |
| Jerry Reuss | LAN | 5.2 | 198105070_LAN_PHI |
| Steve Carlton | PHI | 4.43 | 198105090_SDN_PHI |
| Jim Bibby | PIT | 3.94 | 198105080_PIT_SLN |
| Phil Niekro | ATL | 3.08 | 198105070_ATL_SLN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mike Torrez | BOS | -5.98 | 198105080_BOS_TOR |
| Rich Gale | KCA | -2.25 | 198105090_KCA_CHA |
| Tim Lollar | SDN | -2.02 | 198105090_SDN_PHI |
| Mike Scott | NYN | -2 | 198105080_LAN_NYN |
| Mike Krukow | CHN | -1.79 | 198105080_CHN_ATL |
Based on accumulated WAA for this season up to 1981-05-09.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 4.63 | Fernando Valenzuela | 63 | LAN |
| +003+ | 2.35 | Steve McCatty | 56 | OAK |
| +005+ | 2.09 | Bob Knepper | 36.7 | HOU |
| +006+ | 1.97 | Jerry Reuss | 35 | LAN |
| +009+ | 1.89 | Larry Gura | 48.3 | KCA |
| +010+ | 1.87 | Matt Keough | 47.3 | OAK |
| +011+ | 1.83 | Doyle Alexander | 40.7 | SFN |
| +013+ | 1.77 | Tom Seaver | 52.3 | CIN |
| +016+ | 1.53 | Mike Norris | 51 | OAK |
| +018+ | 1.45 | Bryan Clark | 33.7 | SEA |
| +020+ | 1.38 | Len Barker | 32.3 | CLE |
| +021+ | 1.37 | Rudy May | 54 | NYA |
| +025+ | 1.33 | Tommy John | 51 | NYA |
| +026+ | 1.33 | Gaylord Perry | 44.3 | ATL |
| +028+ | 1.31 | Milt Wilcox | 43.3 | DET |
| +029+ | 1.26 | Andy Rincon | 35.7 | SLN |
| XXXXX | 1.24 | Brian Kingman | 42 | OAK |
| XXXXX | 1.21 | Vida Blue | 46 | SFN |
| XXXXX | 1.19 | Joe Niekro | 49 | HOU |
| XXXXX | 1.18 | Jerry Augustine | 15 | MIL |
| XXXXX | 1.18 | Bert Blyleven | 35 | CLE |
| XXXXX | 1.15 | Scott Sanderson | 35.3 | WAS |
| XXXXX | 1.08 | Nolan Ryan | 26.7 | HOU |
| XXXXX | 0.98 | Phil Niekro | 35 | ATL |
| XXXXX | 0.94 | Steve Trout | 28.7 | CHA |
_