| Starter | Tm | Tier | Game |
|---|---|---|---|
| Wilbur Wood | CHA | 9.82 | 197205190_ANA_CHA |
| Gaylord Perry | CLE | 7.55 | 197205190_CLE_DET |
| Dave McNally | BAL | 5.19 | 197205190_BAL_MIL |
| Mel Stottlemyre | NYA | 4.76 | 197205190_BOS_NYA |
| Don Sutton | LAN | 3.3 | 197205180_HOU_LAN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Al Santorini | SLN | -2.41 | 197205180_CHN_SLN |
| Ron Reed | ATL | -2.4 | 197205170_ATL_HOU |
| Bob Moose | PIT | -1.91 | 197205190_WAS_PIT |
| Ernie McAnally | WAS | -1.64 | 197205170_WAS_NYN |
| Les Cain | DET | -1.09 | 197205190_CLE_DET |
Based on accumulated WAA for this season up to 1972-05-19.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 3.6 | Wilbur Wood | 79.7 | CHA |
| +002+ | 3.25 | Don Sutton | 60.7 | LAN |
| +003+ | 2.58 | Claude Osteen | 51.7 | LAN |
| +005+ | 2.35 | Gaylord Perry | 77 | CLE |
| +006+ | 2.31 | Mickey Lolich | 70.3 | DET |
| +007+ | 2.29 | Milt Wilcox | 50.7 | CLE |
| +009+ | 2.14 | Steve Carlton | 68 | PHI |
| +011+ | 2.03 | Mel Stottlemyre | 54.7 | NYA |
| +014+ | 1.84 | Dave McNally | 51.3 | BAL |
| +024+ | 1.57 | Steve Arlin | 49.3 | SDN |
| +025+ | 1.56 | Fred Norman | 52 | SDN |
| +028+ | 1.42 | Tommy John | 41.7 | LAN |
| +029+ | 1.4 | Joe Coleman | 58.7 | DET |
| +037+ | 1.26 | Mike Torrez | 41.7 | WAS |
| XXXXX | 1.18 | Bill Singer | 47 | LAN |
| XXXXX | 1.16 | Jim Kaat | 37 | MIN |
| XXXXX | 1.13 | Tom Seaver | 52 | NYN |
| XXXXX | 1.1 | Ray Culp | 46.7 | BOS |
| XXXXX | 1.07 | Steve Kline | 42.7 | NYA |
| XXXXX | 1.04 | Gary Gentry | 48 | NYN |
| XXXXX | 1.04 | Scipio Spinks | 53.3 | SLN |
| XXXXX | 1.03 | Pete Broberg | 41.7 | TEX |
| XXXXX | 1.02 | Ken Holtzman | 62 | OAK |
| XXXXX | 1.01 | Jim Shellenback | 24.7 | TEX |
| XXXXX | 0.95 | Tom Timmermann | 39.3 | DET |
_