| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rudy May | NYA | 6.46 | 198105080_NYA_SEA |
| Jerry Reuss | LAN | 5.2 | 198105070_LAN_PHI |
| Jim Bibby | PIT | 3.94 | 198105080_PIT_SLN |
| Phil Niekro | ATL | 3.08 | 198105070_ATL_SLN |
| Scott Sanderson | WAS | 2.35 | 198105070_SDN_WAS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mike Torrez | BOS | -5.98 | 198105080_BOS_TOR |
| Mike Parrott | SEA | -3.03 | 198105060_MIL_SEA |
| Mike Scott | NYN | -2 | 198105080_LAN_NYN |
| Mike Krukow | CHN | -1.79 | 198105080_CHN_ATL |
| Paul Splittorff | KCA | -1.7 | 198105080_KCA_CHA |
Based on accumulated WAA for this season up to 1981-05-08.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 4.52 | Fernando Valenzuela | 63 | LAN |
| +003+ | 2.32 | Steve McCatty | 56 | OAK |
| +005+ | 2.03 | Bob Knepper | 36.7 | HOU |
| +007+ | 1.9 | Jerry Reuss | 35 | LAN |
| +009+ | 1.84 | Matt Keough | 47.3 | OAK |
| +010+ | 1.8 | Larry Gura | 48.3 | KCA |
| +011+ | 1.77 | Doyle Alexander | 40.7 | SFN |
| +012+ | 1.69 | Tom Seaver | 52.3 | CIN |
| +016+ | 1.5 | Mike Norris | 51 | OAK |
| +017+ | 1.47 | Brian Kingman | 34.7 | OAK |
| +018+ | 1.4 | Bryan Clark | 33.7 | SEA |
| +025+ | 1.29 | Rudy May | 54 | NYA |
| +026+ | 1.26 | Gaylord Perry | 44.3 | ATL |
| +027+ | 1.25 | Tommy John | 51 | NYA |
| XXXXX | 1.23 | Milt Wilcox | 43.3 | DET |
| XXXXX | 1.17 | Jerry Augustine | 15 | MIL |
| XXXXX | 1.15 | Bert Blyleven | 35 | CLE |
| XXXXX | 1.1 | Joe Niekro | 49 | HOU |
| XXXXX | 1.1 | Scott Sanderson | 35.3 | WAS |
| XXXXX | 1.03 | Nolan Ryan | 26.7 | HOU |
| XXXXX | 0.93 | Phil Niekro | 35 | ATL |
| XXXXX | 0.92 | Len Barker | 24.3 | CLE |
| XXXXX | 0.9 | Steve Trout | 28.7 | CHA |
| XXXXX | 0.87 | Steve Carlton | 51 | PHI |
| XXXXX | 0.86 | Lary Sorensen | 36.7 | SLN |
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