| Starter | Tm | Tier | Game |
|---|---|---|---|
| Gaylord Perry | CLE | 13.1 | 197206130_CLE_ANA |
| Wilbur Wood | CHA | 10.23 | 197206130_CHA_NYA |
| Ferguson Jenkins | CHN | 5.53 | 197206140_SDN_CHN |
| Tom Seaver | NYN | 3.47 | 197206130_NYN_ATL |
| Mel Stottlemyre | NYA | 3.01 | 197206130_CHA_NYA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jerry Reuss | HOU | -3.27 | 197206120_WAS_HOU |
| Reggie Cleveland | SLN | -2.56 | 197206120_LAN_SLN |
| Jim Nash | ATL | -2.2 | 197206140_NYN_ATL |
| Jack Billingham | CIN | -1.51 | 197206140_PHI_CIN |
| Ken Brett | MIL | -1.01 | 197206140_MIL_TEX |
Based on accumulated WAA for this season up to 1972-06-14.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 4.69 | Wilbur Wood | 133.7 | CHA |
| +003+ | 4.57 | Gaylord Perry | 132.7 | CLE |
| +004+ | 4.28 | Don Sutton | 93.7 | LAN |
| +006+ | 3.33 | Claude Osteen | 81 | LAN |
| +013+ | 2.74 | Joe Coleman | 95.3 | DET |
| +016+ | 2.68 | Jim Palmer | 92 | BAL |
| +017+ | 2.63 | Dick Drago | 96 | KCA |
| +020+ | 2.53 | Milt Wilcox | 80.7 | CLE |
| +023+ | 2.35 | Ken Holtzman | 110 | OAK |
| +027+ | 2.2 | Steve Stone | 83.7 | SFN |
| +028+ | 2.17 | Mickey Lolich | 123.3 | DET |
| +029+ | 2.16 | Gary Nolan | 91 | CIN |
| +030+ | 2.15 | Pat Dobson | 98.7 | BAL |
| +032+ | 2.11 | Jim Hunter | 112.3 | OAK |
| +037+ | 1.94 | Jim Kaat | 72.3 | MIN |
| +042+ | 1.85 | Burt Hooton | 88 | CHN |
| +044+ | 1.85 | Tom Timmermann | 75.7 | DET |
| +051+ | 1.76 | Dave McNally | 93.7 | BAL |
| +057+ | 1.61 | Clyde Wright | 66.7 | ANA |
| +059+ | 1.59 | Mike Kekich | 82.7 | NYA |
| +066+ | 1.54 | Tom Griffin | 26 | HOU |
| +067+ | 1.52 | Scipio Spinks | 90.7 | SLN |
| +068+ | 1.49 | Jon Matlack | 81.7 | NYN |
| +073+ | 1.37 | Steve Kline | 63.7 | NYA |
| +075+ | 1.34 | Bill Hands | 75.7 | CHN |
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