| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bob Gibson | SLN | 20.32 | 196809220_SLN_LAN |
| Denny McLain | DET | 6.31 | 196809230_DET_BAL |
| Dave McNally | BAL | 4.28 | 196809220_BAL_CHA |
| Stan Bahnsen | NYA | 4.05 | 196809210_BOS_NYA |
| Bobby Bolin | SFN | 1.84 | 196809220_ATL_SFN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rick Wise | PHI | -5.84 | 196809220_NYN_PHI |
| Jim Maloney | CIN | -3.81 | 196809210_CIN_HOU |
| Joe Niekro | CHN | -3.62 | 196809210_CHN_PIT |
| Jim Bunning | PIT | -2.09 | 196809232_CIN_PIT |
| Ron Reed | ATL | -0.91 | 196809210_ATL_SFN |
Based on accumulated WAA for this season up to 1968-09-23.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 12.28 | Bob Gibson | 295.7 | SLN |
| +005+ | 7.5 | Luis Tiant | 249.3 | CLE |
| +007+ | 7.13 | Denny McLain | 329.3 | DET |
| +009+ | 6.54 | Sam McDowell | 253.7 | CLE |
| +012+ | 6.29 | Dave McNally | 264 | BAL |
| +016+ | 5.65 | Stan Bahnsen | 251.7 | NYA |
| +018+ | 5.5 | Jerry Koosman | 248.7 | NYN |
| +023+ | 4.95 | Bob Veale | 239.3 | PIT |
| +028+ | 4.52 | Tom Seaver | 262 | NYN |
| +029+ | 4.38 | Juan Marichal | 317.7 | SFN |
| +031+ | 4.13 | Jim Nash | 221.7 | OAK |
| +032+ | 4.07 | Tommy John | 177.3 | CHA |
| +033+ | 3.99 | Bobby Bolin | 169.7 | SFN |
| +037+ | 3.92 | Dean Chance | 287 | MIN |
| +039+ | 3.87 | Steve Blass | 205 | PIT |
| +046+ | 3.43 | Gaylord Perry | 279.7 | SFN |
| +048+ | 3.37 | Jim Hardin | 240.3 | BAL |
| +053+ | 3.09 | Ray Washburn | 201.3 | SLN |
| +058+ | 2.91 | Mel Stottlemyre | 263.7 | NYA |
| +059+ | 2.86 | Stan Williams | 191 | CLE |
| +060+ | 2.85 | Joe Horlen | 217.3 | CHA |
| +066+ | 2.5 | Johnny Odom | 222.3 | OAK |
| +068+ | 2.41 | Ferguson Jenkins | 290 | CHN |
| +070+ | 2.35 | Pat Jarvis | 247.7 | ATL |
| +072+ | 2.22 | Gary Nolan | 137 | CIN |
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