| Starter | Tm | Tier | Game |
|---|---|---|---|
| Gaylord Perry | CLE | 13.1 | 197206130_CLE_ANA |
| Wilbur Wood | CHA | 10.23 | 197206130_CHA_NYA |
| Jim Palmer | BAL | 8.78 | 197206110_BAL_TEX |
| 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 |
| Steve Renko | WAS | -2.86 | 197206110_CIN_WAS |
| Reggie Cleveland | SLN | -2.56 | 197206120_LAN_SLN |
| Ron Reed | ATL | -1.63 | 197206110_ATL_PHI |
| Jim Slaton | MIL | -1.09 | 197206112_MIL_CHA |
Based on accumulated WAA for this season up to 1972-06-13.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 4.64 | Wilbur Wood | 133.7 | CHA |
| +003+ | 4.52 | Gaylord Perry | 132.7 | CLE |
| +004+ | 4.26 | Don Sutton | 93.7 | LAN |
| +006+ | 3.32 | Claude Osteen | 81 | LAN |
| +013+ | 2.72 | Joe Coleman | 95.3 | DET |
| +016+ | 2.68 | Jim Palmer | 92 | BAL |
| +020+ | 2.59 | Dick Drago | 96 | KCA |
| +021+ | 2.45 | Milt Wilcox | 80 | CLE |
| +023+ | 2.35 | Ken Holtzman | 110 | OAK |
| +026+ | 2.18 | Steve Stone | 83.7 | SFN |
| +027+ | 2.15 | Pat Dobson | 98.7 | BAL |
| +028+ | 2.14 | Gary Nolan | 91 | CIN |
| +029+ | 2.06 | Ferguson Jenkins | 110.3 | CHN |
| +035+ | 1.92 | Jim Kaat | 72.3 | MIN |
| +037+ | 1.87 | Mickey Lolich | 114.3 | DET |
| +042+ | 1.84 | Tom Timmermann | 75.7 | DET |
| +041+ | 1.84 | Burt Hooton | 88 | CHN |
| +054+ | 1.62 | Tom Griffin | 24.3 | HOU |
| +056+ | 1.6 | Clyde Wright | 66.7 | ANA |
| +059+ | 1.56 | Jim Hunter | 102.3 | OAK |
| +062+ | 1.53 | Jon Matlack | 74 | NYN |
| +063+ | 1.5 | Scipio Spinks | 90.7 | SLN |
| +069+ | 1.36 | Steve Kline | 63.7 | NYA |
| +075+ | 1.32 | Bill Hands | 75.7 | CHN |
| +076+ | 1.29 | Al Downing | 76.3 | LAN |
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