| Starter | Tm | Tier | Game |
|---|---|---|---|
| Joe Horlen | CHA | 7.83 | 196805210_CHA_BAL |
| Luis Tiant | CLE | 4.04 | 196805212_CLE_OAK |
| Mike Cuellar | HOU | 2.32 | 196805192_HOU_LAN |
| Jim Kaat | MIN | 2.11 | 196805192_ANA_MIN |
| Tom Seaver | NYN | 1.59 | 196805210_PIT_NYN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sammy Ellis | ANA | -5.36 | 196805191_ANA_MIN |
| Milt Pappas | CIN | -4.5 | 196805210_HOU_CIN |
| Dick Ellsworth | BOS | -4.05 | 196805210_BOS_ANA |
| Dick Bosman | TEX | -1.68 | 196805200_NYA_TEX |
| Jack Fisher | CHA | -1.64 | 196805200_CHA_BAL |
Based on accumulated WAA for this season up to 1968-05-21.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 2.47 | Luis Tiant | 67.3 | CLE |
| +004+ | 2.38 | Bob Gibson | 72.7 | SLN |
| +008+ | 1.97 | Ray Sadecki | 74 | SFN |
| +011+ | 1.93 | Bob Veale | 66 | PIT |
| +012+ | 1.88 | Tommy John | 59.7 | CHA |
| +014+ | 1.81 | Gerry Arrigo | 64 | CIN |
| +017+ | 1.74 | Tom Phoebus | 65 | BAL |
| +022+ | 1.63 | Jerry Koosman | 63.7 | NYN |
| +023+ | 1.61 | Bill Singer | 80 | LAN |
| +025+ | 1.59 | Stan Williams | 34.3 | CLE |
| +024+ | 1.59 | Sam McDowell | 73.3 | CLE |
| +026+ | 1.56 | Dave Giusti | 66 | HOU |
| +028+ | 1.53 | Tom Seaver | 79 | NYN |
| +029+ | 1.51 | Pat Jarvis | 70.3 | ATL |
| +031+ | 1.46 | Don Drysdale | 68 | LAN |
| +034+ | 1.43 | Jose Santiago | 64.7 | BOS |
| +037+ | 1.31 | Nolan Ryan | 51.7 | NYN |
| +040+ | 1.27 | Joe Horlen | 53.7 | CHA |
| XXXXX | 1.16 | George Culver | 63.7 | CIN |
| XXXXX | 1.14 | Dick Selma | 32 | NYN |
| XXXXX | 1.1 | Chuck Dobson | 64 | OAK |
| XXXXX | 1.08 | Les Cain | 19.3 | DET |
| XXXXX | 1.05 | Joe Coleman | 53.7 | TEX |
| XXXXX | 1.02 | Dave McNally | 54 | BAL |
| XXXXX | 1 | Al McBean | 68 | PIT |
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