| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jerry Reuss | LAN | 6.55 | 198106100_LAN_SLN |
| Steve Carlton | PHI | 6.37 | 198106100_HOU_PHI |
| Nolan Ryan | HOU | 5.5 | 198106100_HOU_PHI |
| Phil Niekro | ATL | 3.91 | 198106090_ATL_WAS |
| Scott Sanderson | WAS | 3.64 | 198106090_ATL_WAS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Mike Krukow | CHN | -4.59 | 198106090_SFN_CHN |
| Mike Torrez | BOS | -3 | 198106090_BOS_SEA |
| Rich Gale | KCA | -2.85 | 198106080_NYA_KCA |
| Dan Spillner | CLE | -1.61 | 198106080_CLE_ANA |
| Jim Clancy | TOR | -1.19 | 198106080_TOR_CHA |
Based on accumulated WAA for this season up to 1981-06-10.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 4.8 | Bob Knepper | 86.7 | HOU |
| +002+ | 4.02 | Nolan Ryan | 79.7 | HOU |
| +006+ | 3.13 | Jerry Reuss | 80.7 | LAN |
| +007+ | 3.12 | Fernando Valenzuela | 103.3 | LAN |
| +008+ | 2.92 | Ken Forsch | 94 | ANA |
| +009+ | 2.89 | Len Barker | 82.7 | CLE |
| +010+ | 2.84 | Jack Morris | 112.3 | DET |
| +013+ | 2.79 | Tom Seaver | 78.3 | CIN |
| +014+ | 2.77 | Steve McCatty | 94.3 | OAK |
| +018+ | 2.51 | Vida Blue | 81.3 | SFN |
| +019+ | 2.37 | Scott Sanderson | 70.7 | WAS |
| +027+ | 2.01 | Steve Carlton | 106 | PHI |
| +041+ | 1.62 | Rick Langford | 103.3 | OAK |
| +042+ | 1.61 | Jim Bibby | 71.7 | PIT |
| +044+ | 1.6 | Bert Blyleven | 92.3 | CLE |
| +046+ | 1.59 | Richard Dotson | 89 | CHA |
| +050+ | 1.53 | Joe Niekro | 95.3 | HOU |
| +049+ | 1.53 | Juan Eichelberger | 81.3 | SDN |
| +053+ | 1.49 | Doyle Alexander | 76.7 | SFN |
| +055+ | 1.47 | Dave Righetti | 30 | NYA |
| +057+ | 1.46 | Brian Kingman | 76 | OAK |
| +060+ | 1.42 | Andy Rincon | 35.7 | SLN |
| +065+ | 1.36 | Rick Waits | 69.3 | CLE |
| +068+ | 1.35 | John Martin | 37.3 | SLN |
| +071+ | 1.33 | Mike Caldwell | 88.3 | MIL |
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