| Team | Tm | Tier | Game |
|---|---|---|---|
| Baltimore Orioles | BAL | 2.26 | 195809130_BAL_DET |
| New York Yankees | NYA | 2.08 | 195809130_NYA_CHA |
| Milwaukee Braves | ATL | 1.79 | 195809150_LAN_ATL |
| Chicago Cubs | CHN | 1.53 | 195809141_CHN_PIT |
| Pittsburgh Pirates | PIT | 1.3 | 195809130_LAN_PIT |
| Team | Tm | Tier | Game |
|---|---|---|---|
| Washington Senators | MIN | -5.12 | 195809130_MIN_OAK |
| St. Louis Cardinals | SLN | -2.55 | 195809130_SLN_ATL |
| Los Angeles Dodgers | LAN | -2.07 | 195809150_LAN_ATL |
| San Francisco Giants | SFN | -1.36 | 195809141_SFN_CIN |
| Philadelphia Phillies | PHI | -0.75 | 195809140_SLN_PHI |
Based on accumulated WAA for this season up to 1958-09-15.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +039+ | 3.47 | Hoyt Wilhelm | 112.7 | TOT |
| +041+ | 3.37 | Juan Pizarro | 83.7 | ATL |
| +057+ | 2.56 | Ryne Duren | 65.3 | NYA |
| +058+ | 2.52 | Roy Face | 82.3 | PIT |
| +065+ | 2.33 | Don Elston | 87 | CHN |
| +074+ | 2.02 | Dave Hillman | 113.3 | CHN |
| +075+ | 1.97 | Art Ditmar | 133 | NYA |
| +077+ | 1.95 | Barry Latman | 31 | CHA |
| +082+ | 1.82 | Bill Henry | 70 | CHN |
| +089+ | 1.67 | Tom Morgan | 61.3 | DET |
| +090+ | 1.65 | Jim Brosnan | 161.7 | TOT |
| +092+ | 1.59 | Willard Schmidt | 69 | CIN |
| +104+ | 1.28 | Leo Kiely | 70 | BOS |
| XXXXX | 1.15 | Bob Porterfield | 90.3 | TOT |
| XXXXX | 1.06 | Bob Rush | 134.7 | ATL |
| XXXXX | 0.96 | Glen Hobbie | 168 | CHN |
| XXXXX | 0.87 | Gordon Jones | 28.3 | SFN |
| XXXXX | 0.86 | Billy Loes | 109 | BAL |
| XXXXX | 0.83 | Ron Blackburn | 64 | PIT |
| XXXXX | 0.83 | Humberto Robinson | 41.7 | ATL |
| XXXXX | 0.78 | Orlando Pena | 11 | CIN |
| XXXXX | 0.77 | George Zuverink | 68.7 | BAL |
| XXXXX | 0.65 | Tom Gorman | 85 | OAK |
| XXXXX | 0.55 | Virgil Trucks | 59.7 | TOT |
| XXXXX | 0.52 | Jim Grant | 198.7 | CLE |
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