| Starter | Tm | Tier | Game |
|---|---|---|---|
| Luis Tiant | CLE | 9.33 | 196808010_BAL_CLE |
| Juan Marichal | SFN | 4.88 | 196808010_SFN_LAN |
| Don Drysdale | LAN | 4.32 | 196808010_SFN_LAN |
| Tommy John | CHA | 3.83 | 196808020_TEX_CHA |
| Tom Seaver | NYN | 2.62 | 196808020_NYN_LAN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Joe Sparma | DET | -4.58 | 196808020_DET_MIN |
| Joe Niekro | CHN | -3.79 | 196808010_HOU_CHN |
| Phil Ortega | TEX | -3.29 | 196808032_TEX_CHA |
| Ray Culp | BOS | -2.76 | 196808032_ANA_BOS |
| Sammy Ellis | ANA | -2 | 196808031_ANA_BOS |
Based on accumulated WAA for this season up to 1968-08-03.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 8.96 | Bob Gibson | 196.7 | SLN |
| +003+ | 6.5 | Luis Tiant | 191.7 | CLE |
| +004+ | 5.87 | Sam McDowell | 188.7 | CLE |
| +007+ | 4.84 | Denny McLain | 219.3 | DET |
| +008+ | 4.82 | Don Drysdale | 203.3 | LAN |
| +010+ | 4.7 | Juan Marichal | 232.7 | SFN |
| +011+ | 4.62 | Dave McNally | 170.3 | BAL |
| +016+ | 4.44 | Jerry Koosman | 172.3 | NYN |
| +017+ | 4.16 | Tom Seaver | 186.7 | NYN |
| +023+ | 3.65 | Bob Veale | 172 | PIT |
| +024+ | 3.54 | Stan Bahnsen | 159 | NYA |
| +026+ | 3.49 | Ferguson Jenkins | 202.7 | CHN |
| +028+ | 3.43 | Jim Nash | 150 | OAK |
| +031+ | 3.21 | Tom Phoebus | 159.3 | BAL |
| +034+ | 3 | Jim Hardin | 165.3 | BAL |
| +035+ | 2.98 | Mel Stottlemyre | 193 | NYA |
| +036+ | 2.94 | Tommy John | 141.3 | CHA |
| +037+ | 2.91 | Woodie Fryman | 169.3 | PHI |
| +038+ | 2.85 | Dean Chance | 195 | MIN |
| +039+ | 2.79 | George Brunet | 163 | ANA |
| +051+ | 2.56 | Mike Cuellar | 109.7 | HOU |
| +056+ | 2.28 | Jose Santiago | 124 | BOS |
| +057+ | 2.19 | Dick Selma | 124 | NYN |
| +058+ | 2.17 | Wilbur Wood | 102.3 | CHA |
| +066+ | 1.91 | Pat Jarvis | 175 | ATL |
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