| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bob Gibson | SLN | 7.81 | 196806200_CHN_SLN |
| Tommy John | CHA | 5.19 | 196806200_CLE_CHA |
| Luis Tiant | CLE | 5.07 | 196806190_CLE_CHA |
| Don Drysdale | LAN | 4.42 | 196806180_LAN_PIT |
| Chris Short | PHI | 2.32 | 196806181_SFN_PHI |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Milt Pappas | ATL | -5.68 | 196806200_CIN_ATL |
| Tony Cloninger | CIN | -3.86 | 196806180_CIN_ATL |
| Dick Ellsworth | BOS | -3.27 | 196806200_BOS_DET |
| Joe Sparma | DET | -3.24 | 196806190_BOS_DET |
| Wade Blasingame | HOU | -2.51 | 196806182_HOU_NYN |
Based on accumulated WAA for this season up to 1968-06-20.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 4.98 | Bob Gibson | 133.7 | SLN |
| +003+ | 4.55 | Don Drysdale | 125.7 | LAN |
| +004+ | 4.34 | Luis Tiant | 118.3 | CLE |
| +007+ | 3.71 | Woodie Fryman | 117.7 | PHI |
| +010+ | 3.39 | Jerry Koosman | 113.3 | NYN |
| +013+ | 3.07 | Sam McDowell | 121.3 | CLE |
| +015+ | 3.01 | Bill Singer | 118.3 | LAN |
| +018+ | 2.79 | Jim Nash | 92.3 | OAK |
| +021+ | 2.73 | Denny McLain | 136 | DET |
| +023+ | 2.36 | Tommy John | 90.3 | CHA |
| +024+ | 2.11 | Johnny Odom | 85.3 | OAK |
| +029+ | 1.98 | Bob Veale | 107.7 | PIT |
| +031+ | 1.96 | Stan Williams | 79.7 | CLE |
| +032+ | 1.96 | Pat Jarvis | 116.3 | ATL |
| +038+ | 1.82 | Mel Stottlemyre | 114.7 | NYA |
| +039+ | 1.8 | Chris Short | 114.3 | PHI |
| +042+ | 1.75 | Tom Seaver | 123.7 | NYN |
| +044+ | 1.72 | Dave McNally | 93.3 | BAL |
| +045+ | 1.71 | Stan Bahnsen | 94.3 | NYA |
| +047+ | 1.7 | Ferguson Jenkins | 119.7 | CHN |
| +048+ | 1.63 | Jose Santiago | 105.7 | BOS |
| +052+ | 1.62 | Pat Dobson | 43.3 | DET |
| +053+ | 1.59 | Jim Hardin | 91.3 | BAL |
| +054+ | 1.58 | Larry Jaster | 59.3 | SLN |
| +057+ | 1.56 | Dave Giusti | 111 | HOU |
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