| Starter | Tm | Tier | Game |
|---|---|---|---|
| Phil Niekro | ATL | 6.13 | 198105020_ATL_CHN |
| Jerry Reuss | LAN | 5.31 | 198105020_LAN_WAS |
| Joe Niekro | HOU | 4.56 | 198104300_HOU_ATL |
| Scott Sanderson | WAS | 4.16 | 198105020_LAN_WAS |
| Ron Guidry | NYA | 3.63 | 198105020_NYA_OAK |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jesse Jefferson | ANA | -7.47 | 198104300_MIL_ANA |
| Mike Torrez | BOS | -4.96 | 198105020_MIN_BOS |
| Mike Parrott | SEA | -3.08 | 198105010_DET_SEA |
| Rich Gale | KCA | -2.06 | 198104300_KCA_TEX |
| Jackson Todd | TOR | -1.9 | 198104300_TOR_BAL |
Based on accumulated WAA for this season up to 1981-05-02.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.28 | Fernando Valenzuela | 45 | LAN |
| +002+ | 2.29 | Matt Keough | 45 | OAK |
| +006+ | 1.8 | Doyle Alexander | 33.7 | SFN |
| +010+ | 1.47 | Steve McCatty | 37.3 | OAK |
| +012+ | 1.39 | Jerry Reuss | 26 | LAN |
| +014+ | 1.35 | Tom Seaver | 37.3 | CIN |
| +016+ | 1.34 | Larry Gura | 39.3 | KCA |
| +015+ | 1.34 | Brian Kingman | 27.7 | OAK |
| +018+ | 1.32 | Rick Waits | 27 | CLE |
| +019+ | 1.32 | Bob Knepper | 27.7 | HOU |
| XXXXX | 1.23 | Joe Niekro | 42.7 | HOU |
| XXXXX | 1.21 | Mike Norris | 42 | OAK |
| XXXXX | 1.08 | Steve Renko | 16 | ANA |
| XXXXX | 1.07 | Andy Rincon | 23 | SLN |
| XXXXX | 1.06 | Jerry Augustine | 14 | MIL |
| XXXXX | 1 | Steve Carlton | 42 | PHI |
| XXXXX | 0.99 | Rudy May | 37.7 | NYA |
| XXXXX | 0.95 | Gaylord Perry | 35 | ATL |
| XXXXX | 0.9 | Len Barker | 24.3 | CLE |
| XXXXX | 0.89 | Milt Wilcox | 34.3 | DET |
| XXXXX | 0.8 | Vida Blue | 37 | SFN |
| XXXXX | 0.74 | John Denny | 25 | CLE |
| XXXXX | 0.73 | Geoff Zahn | 37.7 | ANA |
| XXXXX | 0.73 | Dave Rozema | 32.3 | DET |
| XXXXX | 0.69 | Jim Bibby | 24 | PIT |
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