| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bob Gibson | SLN | 15.06 | 196808090_SLN_ATL |
| Juan Marichal | SFN | 6.15 | 196808090_NYN_SFN |
| Sam McDowell | CLE | 4.32 | 196808070_CLE_DET |
| Denny McLain | DET | 3.08 | 196808080_CLE_DET |
| Tommy John | CHA | 3.07 | 196808090_CLE_CHA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tony Cloninger | CIN | -4.22 | 196808080_CIN_SLN |
| Sammy Ellis | ANA | -3.27 | 196808070_ANA_TEX |
| Ray Culp | BOS | -2.53 | 196808080_BOS_CHA |
| Rick Wise | PHI | -1.98 | 196808080_PHI_LAN |
| Jim Hunter | OAK | -1.51 | 196808091_OAK_TEX |
Based on accumulated WAA for this season up to 1968-08-09.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 9.37 | Bob Gibson | 216.7 | SLN |
| +003+ | 6.83 | Luis Tiant | 200.7 | CLE |
| +006+ | 5.71 | Denny McLain | 237.3 | DET |
| +007+ | 5.39 | Don Drysdale | 212.3 | LAN |
| +008+ | 5.38 | Sam McDowell | 188.7 | CLE |
| +009+ | 5.11 | Dave McNally | 187.3 | BAL |
| +010+ | 5.04 | Juan Marichal | 250.7 | SFN |
| +018+ | 4.07 | Jerry Koosman | 179 | NYN |
| +021+ | 3.95 | Tom Seaver | 192.7 | NYN |
| +023+ | 3.68 | Jim Nash | 157 | OAK |
| +026+ | 3.59 | Tommy John | 157.3 | CHA |
| +024+ | 3.59 | Bob Veale | 177.3 | PIT |
| +027+ | 3.58 | Jim Hardin | 174.3 | BAL |
| +030+ | 3.53 | Stan Bahnsen | 166 | NYA |
| +031+ | 3.51 | Tom Phoebus | 173.3 | BAL |
| +033+ | 3.5 | Mel Stottlemyre | 202 | NYA |
| +038+ | 2.93 | Woodie Fryman | 173 | PHI |
| +039+ | 2.88 | Dean Chance | 199 | MIN |
| +051+ | 2.54 | Mike Cuellar | 118.7 | HOU |
| +054+ | 2.48 | Bobby Bolin | 93 | SFN |
| +055+ | 2.42 | Wilbur Wood | 106.3 | CHA |
| +059+ | 2.23 | Jose Santiago | 124 | BOS |
| +060+ | 2.2 | Ferguson Jenkins | 209 | CHN |
| +070+ | 1.89 | Bill Singer | 189 | LAN |
| +072+ | 1.8 | Gaylord Perry | 189 | SFN |
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