| Starter | Tm | Tier | Game |
|---|---|---|---|
| Joe Horlen | CHA | 8.44 | 196806070_CHA_BOS |
| Bob Gibson | SLN | 5.36 | 196806060_SLN_HOU |
| Don Drysdale | LAN | 4.29 | 196806080_PHI_LAN |
| Jim Bunning | PIT | 2.32 | 196806080_PIT_HOU |
| Sonny Siebert | CLE | 2.08 | 196806060_CHA_CLE |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Joe Sparma | DET | -3.11 | 196806060_DET_BOS |
| Fred Talbot | NYA | -2.84 | 196806060_MIN_NYA |
| Joe Niekro | CHN | -2.04 | 196806070_ATL_CHN |
| Frank Bertaina | TEX | -1.91 | 196806060_OAK_TEX |
| Jack Fisher | CHA | -1.41 | 196806060_CHA_CLE |
Based on accumulated WAA for this season up to 1968-06-08.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 3.89 | Don Drysdale | 110.3 | LAN |
| +003+ | 3.3 | Luis Tiant | 94.3 | CLE |
| +004+ | 3.22 | Bob Gibson | 106.7 | SLN |
| +009+ | 2.75 | Jerry Koosman | 88.3 | NYN |
| +011+ | 2.73 | Woodie Fryman | 91.3 | PHI |
| +013+ | 2.53 | Tommy John | 76.7 | CHA |
| +016+ | 2.41 | Bill Singer | 97.3 | LAN |
| +019+ | 2.21 | Jim Nash | 78 | OAK |
| +020+ | 2.19 | Joe Horlen | 84.3 | CHA |
| +021+ | 2.19 | Stan Williams | 61.7 | CLE |
| +022+ | 2.15 | Sam McDowell | 102.3 | CLE |
| +028+ | 1.97 | Larry Jaster | 46 | SLN |
| +032+ | 1.88 | Tom Seaver | 101 | NYN |
| +033+ | 1.85 | Dave Giusti | 95.3 | HOU |
| +034+ | 1.8 | Dave McNally | 86.3 | BAL |
| +039+ | 1.64 | Steve Carlton | 89 | SLN |
| +041+ | 1.61 | Bill Hands | 75.7 | CHN |
| +042+ | 1.58 | Denny McLain | 103 | DET |
| +044+ | 1.57 | Mel Stottlemyre | 98.7 | NYA |
| +049+ | 1.52 | Gerry Arrigo | 85.7 | CIN |
| +052+ | 1.43 | Johnny Odom | 69.3 | OAK |
| +053+ | 1.41 | Pat Jarvis | 98.3 | ATL |
| +055+ | 1.39 | Ray Sadecki | 98 | SFN |
| +062+ | 1.32 | Mike Cuellar | 39.3 | HOU |
| +065+ | 1.31 | Camilo Pascual | 56.3 | TEX |
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