| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jim Bunning | PIT | 8.04 | 196805060_PIT_ATL |
| Gary Peters | CHA | 5.7 | 196805051_NYA_CHA |
| Bob Gibson | SLN | 5.02 | 196805060_NYN_SLN |
| Gaylord Perry | SFN | 4.14 | 196805060_SFN_HOU |
| Steve Hargan | CLE | 3.09 | 196805040_MIN_CLE |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Fred Talbot | NYA | -5.68 | 196805040_NYA_CHA |
| Milt Pappas | CIN | -4.01 | 196805050_CIN_LAN |
| Dick Ellsworth | BOS | -2.75 | 196805040_OAK_BOS |
| Dave Giusti | HOU | -2.71 | 196805050_ATL_HOU |
| Jack Fisher | CHA | -1.42 | 196805052_NYA_CHA |
Based on accumulated WAA for this season up to 1968-05-06.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 1.91 | Bob Gibson | 55 | SLN |
| +006+ | 1.71 | Bill Monbouquette | 40 | NYA |
| +009+ | 1.53 | Ray Sadecki | 42.3 | SFN |
| +012+ | 1.47 | Dave McNally | 35 | BAL |
| +013+ | 1.45 | Jose Santiago | 33.3 | BOS |
| +015+ | 1.41 | Tom Seaver | 52 | NYN |
| +016+ | 1.38 | Jim Merritt | 51 | MIN |
| +017+ | 1.36 | Camilo Pascual | 36.3 | TEX |
| XXXXX | 1.23 | Jerry Koosman | 42.7 | NYN |
| XXXXX | 1.17 | Sam McDowell | 45.3 | CLE |
| XXXXX | 1.16 | Al McBean | 39.3 | PIT |
| XXXXX | 1.13 | George Culver | 44 | CIN |
| XXXXX | 1.08 | Gerry Arrigo | 33.3 | CIN |
| XXXXX | 1.07 | Denny McLain | 50 | DET |
| XXXXX | 1.06 | Luis Tiant | 34.3 | CLE |
| XXXXX | 1.04 | Nolan Ryan | 26.3 | NYN |
| XXXXX | 1.04 | Bob Veale | 40.7 | PIT |
| XXXXX | 0.99 | Chris Short | 47.3 | PHI |
| XXXXX | 0.95 | Dave Giusti | 41 | HOU |
| XXXXX | 0.87 | Don Cardwell | 30.3 | NYN |
| XXXXX | 0.87 | Tom Phoebus | 38.7 | BAL |
| XXXXX | 0.85 | Bill Singer | 46 | LAN |
| XXXXX | 0.82 | Pat Jarvis | 50.3 | ATL |
| XXXXX | 0.78 | Tommy John | 36 | CHA |
| XXXXX | 0.76 | Rickey Clark | 32.3 | ANA |
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