| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jim Bunning | PIT | 7.96 | 196805180_CIN_PIT |
| Tommy John | CHA | 5.21 | 196805191_OAK_CHA |
| Steve Hargan | CLE | 3.49 | 196805191_BAL_CLE |
| Mike Cuellar | HOU | 2.32 | 196805192_HOU_LAN |
| Jim Kaat | MIN | 2.11 | 196805192_ANA_MIN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Ray Culp | BOS | -6.71 | 196805180_NYA_BOS |
| Sammy Ellis | ANA | -5.36 | 196805191_ANA_MIN |
| Fred Talbot | NYA | -5 | 196805180_NYA_BOS |
| Dave Giusti | HOU | -1.82 | 196805180_HOU_LAN |
| Dick Bosman | TEX | -1.68 | 196805200_NYA_TEX |
Based on accumulated WAA for this season up to 1968-05-20.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 2.38 | Bob Gibson | 72.7 | SLN |
| +004+ | 2.37 | Ray Sadecki | 67.3 | SFN |
| +005+ | 2.17 | Luis Tiant | 59.3 | CLE |
| +007+ | 2.03 | Bob Veale | 66 | PIT |
| +009+ | 1.92 | Tommy John | 59.7 | CHA |
| +014+ | 1.81 | Gerry Arrigo | 64 | CIN |
| +016+ | 1.78 | Tom Phoebus | 65 | BAL |
| +018+ | 1.72 | Jerry Koosman | 63.7 | NYN |
| +021+ | 1.6 | Stan Williams | 34.3 | CLE |
| +022+ | 1.57 | Tom Seaver | 68 | NYN |
| +023+ | 1.56 | Dave Giusti | 66 | HOU |
| +028+ | 1.51 | Pat Jarvis | 70.3 | ATL |
| +030+ | 1.46 | Don Drysdale | 68 | LAN |
| +031+ | 1.45 | Bill Singer | 71 | LAN |
| +032+ | 1.42 | Jose Santiago | 64.7 | BOS |
| +034+ | 1.38 | Nolan Ryan | 51.7 | NYN |
| +039+ | 1.33 | Al McBean | 61.7 | PIT |
| XXXXX | 1.18 | Dick Selma | 32 | NYN |
| XXXXX | 1.16 | George Culver | 63.7 | CIN |
| XXXXX | 1.08 | Les Cain | 19.3 | DET |
| XXXXX | 1.05 | Dave McNally | 54 | BAL |
| XXXXX | 1.01 | Jim Britton | 16 | ATL |
| XXXXX | 0.98 | Chris Short | 69.7 | PHI |
| XXXXX | 0.94 | Don Cardwell | 48 | NYN |
| XXXXX | 0.93 | Camilo Pascual | 42.3 | TEX |
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