| Starter | Tm | Tier | Game |
|---|---|---|---|
| Luis Tiant | CLE | 5.66 | 196806231_DET_CLE |
| Mike Cuellar | HOU | 3.17 | 196806250_CHN_HOU |
| Juan Marichal | SFN | 2.21 | 196806230_SFN_PIT |
| Bill Singer | LAN | 2.19 | 196806230_LAN_NYN |
| Jim Nash | OAK | 2.17 | 196806230_TEX_OAK |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Joe Sparma | DET | -4.13 | 196806232_DET_CLE |
| Tony Cloninger | CIN | -4.07 | 196806231_CHN_CIN |
| Ray Culp | BOS | -3.01 | 196806250_BOS_BAL |
| Joe Niekro | CHN | -2.99 | 196806250_CHN_HOU |
| Sammy Ellis | ANA | -1.59 | 196806250_OAK_ANA |
Based on accumulated WAA for this season up to 1968-06-25.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 5.08 | Bob Gibson | 133.7 | SLN |
| +003+ | 5.02 | Luis Tiant | 127.3 | CLE |
| +004+ | 4.96 | Don Drysdale | 132.3 | LAN |
| +009+ | 3.51 | Jim Nash | 101.3 | OAK |
| +010+ | 3.45 | Woodie Fryman | 123.7 | PHI |
| +012+ | 3.29 | Sam McDowell | 126.7 | CLE |
| +018+ | 2.86 | Jerry Koosman | 119.3 | NYN |
| +019+ | 2.83 | Denny McLain | 145 | DET |
| +023+ | 2.5 | Tommy John | 90.3 | CHA |
| +024+ | 2.48 | Tom Seaver | 132.7 | NYN |
| +025+ | 2.42 | Bill Singer | 122.7 | LAN |
| +027+ | 2.36 | Bob Veale | 114.7 | PIT |
| +028+ | 2.33 | Johnny Odom | 93.3 | OAK |
| +031+ | 2.23 | Ray Sadecki | 129 | SFN |
| +032+ | 2.19 | Stan Williams | 82.3 | CLE |
| +034+ | 2.05 | Mike Cuellar | 73.3 | HOU |
| +036+ | 2.01 | Stan Bahnsen | 103.3 | NYA |
| +038+ | 1.99 | Dave McNally | 101.7 | BAL |
| +039+ | 1.98 | Jose Santiago | 114.7 | BOS |
| +041+ | 1.9 | Ferguson Jenkins | 129.7 | CHN |
| +046+ | 1.86 | Mel Stottlemyre | 122.7 | NYA |
| +048+ | 1.85 | Larry Jaster | 66 | SLN |
| +055+ | 1.77 | Juan Marichal | 155.7 | SFN |
| +056+ | 1.76 | Dick Selma | 71 | NYN |
| +058+ | 1.74 | Chris Short | 120.3 | PHI |
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