| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bob Gibson | SLN | 5.36 | 196806060_SLN_HOU |
| Luis Tiant | CLE | 4.09 | 196806040_CHA_CLE |
| Mike Cuellar | HOU | 3.6 | 196806040_SLN_HOU |
| Don Drysdale | LAN | 3.58 | 196806040_PIT_LAN |
| Jim Bunning | PIT | 2.85 | 196806040_PIT_LAN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ray Culp | BOS | -4.27 | 196806050_DET_BOS |
| Sammy Ellis | ANA | -3.71 | 196806040_ANA_BAL |
| Joe Sparma | DET | -3.11 | 196806060_DET_BOS |
| Fred Talbot | NYA | -2.84 | 196806060_MIN_NYA |
| Frank Bertaina | TEX | -1.91 | 196806060_OAK_TEX |
Based on accumulated WAA for this season up to 1968-06-06.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 3.88 | Don Drysdale | 104 | LAN |
| +003+ | 3.24 | Luis Tiant | 94.3 | CLE |
| +004+ | 3.19 | Bob Gibson | 106.7 | SLN |
| +008+ | 2.74 | Jerry Koosman | 88.3 | NYN |
| +011+ | 2.7 | Woodie Fryman | 91.3 | PHI |
| +013+ | 2.51 | Tommy John | 76.7 | CHA |
| +014+ | 2.4 | Bill Singer | 97.3 | LAN |
| +018+ | 2.26 | Sam McDowell | 95.3 | CLE |
| +019+ | 2.16 | Joe Horlen | 77.7 | CHA |
| +020+ | 2.15 | Stan Williams | 61.7 | CLE |
| +021+ | 2.12 | Dave Giusti | 90 | HOU |
| +025+ | 1.98 | Pat Jarvis | 94.3 | ATL |
| +027+ | 1.96 | Larry Jaster | 46 | SLN |
| +031+ | 1.87 | Tom Seaver | 101 | NYN |
| +036+ | 1.66 | Ray Sadecki | 89.7 | SFN |
| +040+ | 1.62 | Steve Carlton | 89 | SLN |
| +042+ | 1.61 | Bill Hands | 75.7 | CHN |
| +044+ | 1.6 | Jim Nash | 69 | OAK |
| +045+ | 1.58 | Denny McLain | 103 | DET |
| +046+ | 1.57 | Mel Stottlemyre | 98.7 | NYA |
| +048+ | 1.53 | Tom Phoebus | 82.3 | BAL |
| +051+ | 1.51 | Gerry Arrigo | 85.7 | CIN |
| +053+ | 1.4 | Dave McNally | 77.3 | BAL |
| +054+ | 1.4 | Gary Bell | 63 | BOS |
| +058+ | 1.32 | Mike Cuellar | 39.3 | HOU |
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