| Starter | Tm | Tier | Game |
|---|---|---|---|
| Juan Marichal | SFN | 5.34 | 196808290_HOU_SFN |
| Tom Seaver | NYN | 4.11 | 196808300_SLN_NYN |
| Sam McDowell | CLE | 3.64 | 196808301_NYA_CLE |
| Stan Bahnsen | NYA | 3.59 | 196808310_NYA_CLE |
| Dave McNally | BAL | 3.47 | 196808310_BAL_DET |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rick Wise | PHI | -4.39 | 196808310_CIN_PHI |
| Frank Bertaina | TEX | -4.39 | 196808310_TEX_BOS |
| Joe Niekro | CHN | -2.55 | 196808310_HOU_CHN |
| Tony Cloninger | CIN | -1.75 | 196808310_CIN_PHI |
| Milt Pappas | ATL | -1.27 | 196808300_ATL_PIT |
Based on accumulated WAA for this season up to 1968-08-31.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 11.17 | Bob Gibson | 252.7 | SLN |
| +003+ | 7.36 | Luis Tiant | 232.7 | CLE |
| +006+ | 6.58 | Denny McLain | 277 | DET |
| +009+ | 5.7 | Sam McDowell | 220.7 | CLE |
| +010+ | 5.62 | Tom Seaver | 234.7 | NYN |
| +011+ | 5.32 | Dave McNally | 224 | BAL |
| +012+ | 5.23 | Stan Bahnsen | 213.3 | NYA |
| +013+ | 5.22 | Jerry Koosman | 216.7 | NYN |
| +019+ | 4.65 | Don Drysdale | 239 | LAN |
| +020+ | 4.63 | Juan Marichal | 284 | SFN |
| +027+ | 4.04 | Tommy John | 177.3 | CHA |
| +034+ | 3.48 | Gaylord Perry | 240.3 | SFN |
| +036+ | 3.28 | Bob Veale | 204.7 | PIT |
| +038+ | 3.19 | Dean Chance | 247.7 | MIN |
| +040+ | 3.16 | Bobby Bolin | 127 | SFN |
| +041+ | 3.13 | Jim Hardin | 210.7 | BAL |
| +045+ | 3.01 | Pat Jarvis | 214.3 | ATL |
| +047+ | 2.92 | Woodie Fryman | 196.3 | PHI |
| +053+ | 2.66 | Steve Blass | 171 | PIT |
| +055+ | 2.51 | Ray Washburn | 172 | SLN |
| +056+ | 2.5 | Mel Stottlemyre | 234.7 | NYA |
| +057+ | 2.48 | Cal Koonce | 85 | NYN |
| +071+ | 2.1 | Nelson Briles | 209 | SLN |
| +072+ | 2.09 | Ferguson Jenkins | 249 | CHN |
| +076+ | 1.96 | Jim Nash | 182.3 | OAK |
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