| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jim Palmer | BAL | 7.19 | 197105190_BAL_TEX |
| Jerry Koosman | NYN | 5.04 | 197105190_NYN_PHI |
| Gaylord Perry | SFN | 4.67 | 197105210_SFN_HOU |
| Bob Gibson | SLN | 4.44 | 197105190_LAN_SLN |
| Andy Messersmith | ANA | 3.95 | 197105190_MIN_ANA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jim Bunning | PHI | -2.53 | 197105210_CIN_PHI |
| Clay Kirby | SDN | -2.35 | 197105200_SDN_HOU |
| Mike Kekich | NYA | -2.29 | 197105210_NYA_CLE |
| Steve Blass | PIT | -1.43 | 197105200_PIT_CIN |
| Jerry Janeski | TEX | -1.18 | 197105210_TEX_DET |
Based on accumulated WAA for this season up to 1971-05-21.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 4.63 | Vida Blue | 86.7 | OAK |
| +002+ | 3.89 | Tom Bradley | 78 | CHA |
| +006+ | 2.94 | Bert Blyleven | 80.7 | MIN |
| +009+ | 2.78 | Sonny Siebert | 69.3 | BOS |
| +014+ | 2.27 | Dock Ellis | 68.7 | PIT |
| +015+ | 2.24 | Larry Dierker | 79 | HOU |
| +016+ | 2.22 | Steve Kline | 65 | NYA |
| +017+ | 2.19 | Tom Seaver | 73 | NYN |
| +018+ | 2.18 | Juan Marichal | 79.3 | SFN |
| +019+ | 2.13 | Jim Palmer | 74 | BAL |
| +020+ | 2 | Bill Parsons | 61.3 | MIL |
| +021+ | 1.98 | Nolan Ryan | 41 | NYN |
| +029+ | 1.69 | Bruce DalCanton | 52.3 | KCA |
| +031+ | 1.61 | Mike Hedlund | 54 | KCA |
| +034+ | 1.55 | Al Downing | 65.3 | LAN |
| +035+ | 1.51 | Dick Drago | 55.3 | KCA |
| +036+ | 1.46 | Claude Osteen | 79.7 | LAN |
| +039+ | 1.4 | Gary Gentry | 60.3 | NYN |
| +040+ | 1.4 | Dave Roberts | 53 | SDN |
| +045+ | 1.34 | Ron Bryant | 52.3 | SFN |
| +049+ | 1.29 | Ferguson Jenkins | 84 | CHN |
| +052+ | 1.25 | Clyde Wright | 76.7 | ANA |
| XXXXX | 1.21 | Steve Carlton | 65.7 | SLN |
| XXXXX | 1.18 | Gaylord Perry | 80 | SFN |
| XXXXX | 1.11 | Ray Lamb | 40.3 | CLE |
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