| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jerry Reuss | LAN | 7.58 | 198105310_CIN_LAN |
| Joe Niekro | HOU | 5.48 | 198105300_HOU_SFN |
| Steve Carlton | PHI | 4.47 | 198105310_SLN_PHI |
| Britt Burns | CHA | 3.39 | 198105312_ANA_CHA |
| Scott McGregor | BAL | 3.1 | 198105310_DET_BAL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mike Krukow | CHN | -4.94 | 198105300_CHN_NYN |
| Glenn Abbott | SEA | -3.13 | 198106010_SEA_KCA |
| Bruce Berenyi | CIN | -2.01 | 198106010_CIN_SFN |
| Dan Spillner | CLE | -1.81 | 198105300_NYA_CLE |
| Milt Wilcox | DET | -1.64 | 198106010_MIL_DET |
Based on accumulated WAA for this season up to 1981-06-01.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 4.22 | Fernando Valenzuela | 100 | LAN |
| +002+ | 4.02 | Bob Knepper | 70.7 | HOU |
| +005+ | 2.89 | Joe Niekro | 88 | HOU |
| +006+ | 2.77 | Nolan Ryan | 63 | HOU |
| +007+ | 2.74 | Jerry Reuss | 66.7 | LAN |
| +008+ | 2.69 | Vida Blue | 69.3 | SFN |
| +009+ | 2.63 | Tom Seaver | 69.3 | CIN |
| +012+ | 2.44 | Len Barker | 65.3 | CLE |
| +014+ | 2.3 | Burt Hooton | 74 | LAN |
| +019+ | 2.13 | Ken Forsch | 85 | ANA |
| +020+ | 2.09 | Doyle Alexander | 72.3 | SFN |
| +021+ | 2.08 | Steve McCatty | 76.3 | OAK |
| +022+ | 2.05 | Bryan Clark | 63 | SEA |
| +028+ | 1.77 | Scott Sanderson | 61.7 | WAS |
| +030+ | 1.69 | Jack Morris | 94.3 | DET |
| +035+ | 1.62 | Steve Carlton | 92 | PHI |
| +036+ | 1.61 | Britt Burns | 72 | CHA |
| +043+ | 1.5 | Bert Blyleven | 66.7 | CLE |
| +047+ | 1.44 | Rick Langford | 86.3 | OAK |
| +049+ | 1.43 | Andy Rincon | 35.7 | SLN |
| +050+ | 1.41 | Brian Kingman | 63 | OAK |
| +057+ | 1.33 | Rick Rhoden | 63.7 | PIT |
| +058+ | 1.33 | Jim Bibby | 63.7 | PIT |
| +064+ | 1.28 | Matt Keough | 79.3 | OAK |
| XXXXX | 1.19 | Charlie Lea | 49.7 | WAS |
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