| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tom Seaver | NYN | 7.78 | 197205160_WAS_NYN |
| Don Sutton | LAN | 3.3 | 197205180_HOU_LAN |
| Mickey Lolich | DET | 3.05 | 197205170_BAL_DET |
| Clyde Wright | ANA | 2.59 | 197205180_OAK_ANA |
| Bert Blyleven | MIN | 2.54 | 197205170_MIN_CHA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Al Santorini | SLN | -2.41 | 197205180_CHN_SLN |
| Ron Reed | ATL | -2.4 | 197205170_ATL_HOU |
| Jack Billingham | CIN | -2.32 | 197205162_CIN_SFN |
| Jerry Reuss | HOU | -2.12 | 197205160_ATL_HOU |
| Rich Hand | TEX | -1.89 | 197205160_TEX_KCA |
Based on accumulated WAA for this season up to 1972-05-18.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.24 | Don Sutton | 60.7 | LAN |
| +002+ | 3.19 | Wilbur Wood | 71.7 | CHA |
| +005+ | 2.31 | Mickey Lolich | 70.3 | DET |
| +006+ | 2.28 | Milt Wilcox | 50.7 | CLE |
| +007+ | 2.14 | Steve Carlton | 68 | PHI |
| +008+ | 2.13 | Dave McNally | 47.3 | BAL |
| +011+ | 1.91 | Claude Osteen | 42.7 | LAN |
| +012+ | 1.89 | Gaylord Perry | 68 | CLE |
| +021+ | 1.57 | Steve Arlin | 49.3 | SDN |
| +023+ | 1.56 | Fred Norman | 52 | SDN |
| +028+ | 1.41 | Tommy John | 41.7 | LAN |
| +029+ | 1.4 | Joe Coleman | 58.7 | DET |
| +032+ | 1.32 | Mel Stottlemyre | 45.7 | NYA |
| XXXXX | 1.24 | Mike Torrez | 41.7 | WAS |
| XXXXX | 1.18 | Bill Singer | 47 | LAN |
| XXXXX | 1.12 | Tom Seaver | 52 | NYN |
| XXXXX | 1.09 | Ray Culp | 46.7 | BOS |
| XXXXX | 1.08 | Steve Kline | 42.7 | NYA |
| XXXXX | 1.06 | Jim Kaat | 30 | MIN |
| XXXXX | 1.04 | Gary Gentry | 48 | NYN |
| XXXXX | 1.03 | Pete Broberg | 41.7 | TEX |
| XXXXX | 1.01 | Jim Shellenback | 24.7 | TEX |
| XXXXX | 0.99 | Ken Holtzman | 62 | OAK |
| XXXXX | 0.96 | Scipio Spinks | 44.3 | SLN |
| XXXXX | 0.95 | Tom Timmermann | 39.3 | DET |
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