| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bob Gibson | SLN | 15.97 | 196808140_SLN_CHN |
| Luis Tiant | CLE | 8.46 | 196808140_DET_CLE |
| Juan Marichal | SFN | 5.84 | 196808130_SFN_PIT |
| Dave McNally | BAL | 3.84 | 196808130_BAL_OAK |
| Tommy John | CHA | 3.37 | 196808141_CHA_BOS |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Frank Bertaina | TEX | -4.3 | 196808150_TEX_ANA |
| Joe Sparma | DET | -4.29 | 196808140_DET_CLE |
| Joe Niekro | CHN | -3.3 | 196808140_SLN_CHN |
| Tony Cloninger | CIN | -3.04 | 196808130_ATL_CIN |
| Sammy Ellis | ANA | -2.88 | 196808130_NYA_ANA |
Based on accumulated WAA for this season up to 1968-08-15.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 9.83 | Bob Gibson | 225.7 | SLN |
| +003+ | 7.1 | Luis Tiant | 216.7 | CLE |
| +006+ | 5.98 | Don Drysdale | 221.3 | LAN |
| +007+ | 5.66 | Juan Marichal | 259.7 | SFN |
| +008+ | 5.64 | Denny McLain | 246.3 | DET |
| +009+ | 5.55 | Sam McDowell | 191 | CLE |
| +011+ | 4.93 | Jerry Koosman | 197 | NYN |
| +012+ | 4.8 | Dave McNally | 191 | BAL |
| +021+ | 4.13 | Tom Seaver | 200.7 | NYN |
| +024+ | 3.84 | Tom Phoebus | 180.3 | BAL |
| +028+ | 3.67 | Jim Nash | 166 | OAK |
| +031+ | 3.6 | Tommy John | 166 | CHA |
| +032+ | 3.55 | Stan Bahnsen | 181.3 | NYA |
| +033+ | 3.54 | Bob Veale | 185.3 | PIT |
| +037+ | 3.19 | Bobby Bolin | 106.3 | SFN |
| +039+ | 3.11 | Woodie Fryman | 188.3 | PHI |
| +043+ | 2.75 | Jim Hardin | 185.7 | BAL |
| +044+ | 2.74 | Dean Chance | 215 | MIN |
| +046+ | 2.69 | Gaylord Perry | 208 | SFN |
| +049+ | 2.62 | Nelson Briles | 193.7 | SLN |
| +054+ | 2.41 | Wilbur Wood | 118 | CHA |
| +059+ | 2.27 | Mike Cuellar | 126.7 | HOU |
| +066+ | 2.11 | Ferguson Jenkins | 218 | CHN |
| +068+ | 2.05 | Vicente Romo | 54.3 | TOT |
| +075+ | 1.79 | Tom Murphy | 91.3 | ANA |
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