| Starter | Tm | Tier | Game |
|---|---|---|---|
| Joe Horlen | CHA | 8.38 | 196806110_CHA_NYA |
| Bob Gibson | SLN | 5.95 | 196806110_SLN_ATL |
| Luis Tiant | CLE | 4.35 | 196806090_CLE_DET |
| Mike Cuellar | HOU | 3.23 | 196806090_PIT_HOU |
| Juan Marichal | SFN | 2.02 | 196806100_PIT_SFN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Sammy Ellis | ANA | -3.5 | 196806092_ANA_NYA |
| Joe Niekro | CHN | -3.16 | 196806110_CIN_CHN |
| Fred Talbot | NYA | -2.76 | 196806110_CHA_NYA |
| Joe Sparma | DET | -2.74 | 196806112_MIN_DET |
| Frank Bertaina | TEX | -1.98 | 196806110_BAL_TEX |
Based on accumulated WAA for this season up to 1968-06-11.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 3.98 | Luis Tiant | 103.3 | CLE |
| +003+ | 3.94 | Don Drysdale | 110.3 | LAN |
| +004+ | 3.83 | Bob Gibson | 115.7 | SLN |
| +006+ | 3.05 | Jerry Koosman | 95.3 | NYN |
| +008+ | 2.94 | Woodie Fryman | 99.7 | PHI |
| +015+ | 2.6 | Tom Seaver | 111 | NYN |
| +016+ | 2.57 | Tommy John | 76.7 | CHA |
| +019+ | 2.36 | Bill Singer | 102.3 | LAN |
| +020+ | 2.3 | Jim Nash | 78 | OAK |
| +021+ | 2.27 | Stan Williams | 68.3 | CLE |
| +022+ | 2.24 | Sam McDowell | 102.3 | CLE |
| +032+ | 1.9 | Dave Giusti | 95.3 | HOU |
| +035+ | 1.84 | Dave McNally | 86.3 | BAL |
| +037+ | 1.81 | Larry Jaster | 53 | SLN |
| +039+ | 1.76 | Denny McLain | 111 | DET |
| +043+ | 1.67 | Mel Stottlemyre | 105.7 | NYA |
| +047+ | 1.54 | Joe Horlen | 89.7 | CHA |
| +049+ | 1.51 | Johnny Odom | 69.3 | OAK |
| +052+ | 1.48 | Pat Jarvis | 98.3 | ATL |
| +060+ | 1.31 | Jim Hardin | 84.7 | BAL |
| +059+ | 1.31 | Dick Selma | 55.7 | NYN |
| +064+ | 1.28 | Chris Short | 97 | PHI |
| XXXXX | 1.25 | John Hiller | 34.3 | DET |
| XXXXX | 1.24 | Mike Cuellar | 47.3 | HOU |
| XXXXX | 1.22 | Nolan Ryan | 70.3 | NYN |
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