| Starter | Tm | Tier | Game |
|---|---|---|---|
| Joe Horlen | CHA | 8.44 | 196806070_CHA_BOS |
| Luis Tiant | CLE | 4.35 | 196806090_CLE_DET |
| Don Drysdale | LAN | 4.29 | 196806080_PHI_LAN |
| Mike Cuellar | HOU | 3.23 | 196806090_PIT_HOU |
| Jim Bunning | PIT | 2.32 | 196806080_PIT_HOU |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sammy Ellis | ANA | -3.5 | 196806092_ANA_NYA |
| Joe Niekro | CHN | -2.04 | 196806070_ATL_CHN |
| Phil Ortega | TEX | -1.47 | 196806071_MIN_TEX |
| Ray Washburn | SLN | -0.89 | 196806092_SLN_CIN |
| Mickey Lolich | DET | -0.85 | 196806080_CLE_DET |
Based on accumulated WAA for this season up to 1968-06-09.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 3.93 | Don Drysdale | 110.3 | LAN |
| +002+ | 3.93 | Luis Tiant | 103.3 | CLE |
| +004+ | 3.22 | Bob Gibson | 106.7 | SLN |
| +005+ | 3.05 | Jerry Koosman | 95.3 | NYN |
| +006+ | 2.93 | Woodie Fryman | 99.7 | PHI |
| +014+ | 2.56 | Tommy John | 76.7 | CHA |
| +017+ | 2.35 | Bill Singer | 102.3 | LAN |
| +019+ | 2.24 | Jim Nash | 78 | OAK |
| +020+ | 2.22 | Joe Horlen | 84.3 | CHA |
| +021+ | 2.21 | Stan Williams | 61.7 | CLE |
| +022+ | 2.19 | Sam McDowell | 102.3 | CLE |
| +030+ | 1.97 | Larry Jaster | 46 | SLN |
| +032+ | 1.94 | Tom Seaver | 101 | NYN |
| +034+ | 1.89 | Dave Giusti | 95.3 | HOU |
| +036+ | 1.83 | Dave McNally | 86.3 | BAL |
| +039+ | 1.74 | Denny McLain | 111 | DET |
| +043+ | 1.61 | Mel Stottlemyre | 98.7 | NYA |
| +049+ | 1.47 | Pat Jarvis | 98.3 | ATL |
| +051+ | 1.45 | Johnny Odom | 69.3 | OAK |
| +052+ | 1.42 | Ray Sadecki | 98 | SFN |
| +057+ | 1.33 | Camilo Pascual | 56.3 | TEX |
| +060+ | 1.29 | Bob Veale | 84.7 | PIT |
| +061+ | 1.28 | Chris Short | 97 | PHI |
| XXXXX | 1.24 | Mike Cuellar | 47.3 | HOU |
| XXXXX | 1.21 | Gary Bell | 72 | BOS |
_