| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bob Gibson | SLN | 14.48 | 196807300_SLN_NYN |
| Sam McDowell | CLE | 3.53 | 196807300_TEX_CLE |
| Tommy John | CHA | 3.26 | 196807290_CHA_OAK |
| Jerry Koosman | NYN | 2.06 | 196807310_ATL_NYN |
| Mel Stottlemyre | NYA | 2.05 | 196807300_NYA_DET |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tony Cloninger | CIN | -5.89 | 196807300_CIN_PHI |
| Milt Pappas | ATL | -3.84 | 196807310_ATL_NYN |
| Frank Bertaina | TEX | -3.56 | 196807310_TEX_DET |
| Joe Sparma | DET | -3.51 | 196807290_NYA_DET |
| Ray Culp | BOS | -2.99 | 196807291_BAL_BOS |
Based on accumulated WAA for this season up to 1968-07-31.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 8.96 | Bob Gibson | 196.7 | SLN |
| +003+ | 7.04 | Luis Tiant | 183.7 | CLE |
| +004+ | 5.69 | Sam McDowell | 182.3 | CLE |
| +007+ | 4.86 | Denny McLain | 219.3 | DET |
| +008+ | 4.73 | Don Drysdale | 195.3 | LAN |
| +012+ | 4.46 | Jerry Koosman | 172.3 | NYN |
| +015+ | 4.22 | Dave McNally | 161.3 | BAL |
| +016+ | 4.12 | Juan Marichal | 223.7 | SFN |
| +019+ | 3.99 | Tom Seaver | 177.7 | NYN |
| +022+ | 3.61 | Bob Veale | 168 | PIT |
| +025+ | 3.54 | Ferguson Jenkins | 202.7 | CHN |
| +027+ | 3.34 | Tommy John | 137.7 | CHA |
| +030+ | 3.24 | Tom Phoebus | 159.3 | BAL |
| +031+ | 3.18 | Jim Nash | 143 | OAK |
| +032+ | 3.03 | Jim Hardin | 159.3 | BAL |
| +034+ | 2.95 | Stan Bahnsen | 150 | NYA |
| +035+ | 2.92 | Woodie Fryman | 169.3 | PHI |
| +041+ | 2.79 | George Brunet | 163 | ANA |
| +049+ | 2.6 | Mel Stottlemyre | 184 | NYA |
| +052+ | 2.44 | Mike Cuellar | 101.7 | HOU |
| +055+ | 2.37 | Pat Jarvis | 172 | ATL |
| +056+ | 2.31 | Jose Santiago | 124 | BOS |
| +057+ | 2.23 | Dean Chance | 185.7 | MIN |
| +059+ | 2.2 | Dick Selma | 124 | NYN |
| +061+ | 2.11 | Wilbur Wood | 101.3 | CHA |
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