| Starter | Tm | Tier | Game |
|---|---|---|---|
| Joe Horlen | CHA | 8.47 | 196805250_CHA_NYA |
| Sonny Siebert | CLE | 3.56 | 196805230_CLE_ANA |
| Mike Cuellar | HOU | 2.61 | 196805250_LAN_HOU |
| Jim Kaat | MIN | 1.99 | 196805250_BOS_MIN |
| Gaylord Perry | SFN | 1.76 | 196805230_SFN_ATL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ray Culp | BOS | -4.87 | 196805240_BOS_MIN |
| Sammy Ellis | ANA | -4.04 | 196805230_CLE_ANA |
| Fred Talbot | NYA | -3.94 | 196805250_CHA_NYA |
| Ken Holtzman | CHN | -0.87 | 196805240_SFN_CHN |
| Denny McLain | DET | -0.78 | 196805250_DET_OAK |
Based on accumulated WAA for this season up to 1968-05-25.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 2.64 | Bob Gibson | 80.7 | SLN |
| +004+ | 2.48 | Luis Tiant | 67.3 | CLE |
| +005+ | 2.42 | Tommy John | 68.7 | CHA |
| +008+ | 2.11 | Dave Giusti | 75 | HOU |
| +010+ | 2 | Don Drysdale | 77 | LAN |
| +011+ | 1.95 | Jose Santiago | 72.7 | BOS |
| +012+ | 1.94 | Jerry Koosman | 71.7 | NYN |
| +015+ | 1.9 | Bob Veale | 73 | PIT |
| +017+ | 1.85 | Ray Sadecki | 82 | SFN |
| +018+ | 1.84 | Stan Williams | 41.3 | CLE |
| +020+ | 1.79 | Sam McDowell | 79.3 | CLE |
| +022+ | 1.77 | Joe Horlen | 62 | CHA |
| +024+ | 1.66 | Pat Jarvis | 79.3 | ATL |
| +028+ | 1.56 | Bill Singer | 80 | LAN |
| +029+ | 1.56 | Tom Seaver | 79 | NYN |
| +035+ | 1.41 | Gerry Arrigo | 71.7 | CIN |
| +038+ | 1.37 | Tom Phoebus | 69.3 | BAL |
| +042+ | 1.28 | Dick Selma | 34 | NYN |
| XXXXX | 1.22 | Denny McLain | 80 | DET |
| XXXXX | 1.2 | Sonny Siebert | 76.7 | CLE |
| XXXXX | 1.08 | George Brunet | 70 | ANA |
| XXXXX | 1.05 | Les Cain | 19.3 | DET |
| XXXXX | 1.03 | Stan Bahnsen | 57.3 | NYA |
| XXXXX | 1.02 | Woodie Fryman | 64.3 | PHI |
| XXXXX | 1.01 | Nolan Ryan | 56.7 | NYN |
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