21‑Apr‑1975 | Houston | Clay | R32 | 135 | 98 | Grover Raz Reid [USA] d. Edlefsen | 6-1 6-4 | | | | | | | | | |
14‑Apr‑1975 | Tokyo Indoor | Carpet | R32 | 135 | 95 | Haroon Rahim [PAK] d. Edlefsen | 6-2 6-3 | | | | | | | | | |
31‑Mar‑1975 | Tuscon | Hard | R64 | 120 | 11 | (7)Marty Riessen [USA] d. Edlefsen | 6-0 6-2 | | | | | | | | | |
24‑Mar‑1975 | Atlanta WCT | Carpet | R32 | 120 | 54 | (8)Phil Dent [AUS] d. Edlefsen | 6-2 6-3 | | | | | | | | | |
17‑Mar‑1975 | Memphis | Carpet | R32 | 120 | 21 | (1)John Alexander [AUS] d. Edlefsen | 6-3 6-3 | | | | | | | | | |
10‑Mar‑1975 | Washington Indoor WCT | Carpet | R32 | 120 | 44 | (7)Robert Lutz [USA] d. Edlefsen | 6-1 6-4 | | | | | | | | | |
23‑Feb‑1975 | San Antonio WCT | Hard | R16 | 119 | 16 | Dick Stockton [USA] d. Edlefsen | 3-6 6-1 6-2 | | | | | | | | | |
23‑Feb‑1975 | San Antonio WCT | Hard | R32 | 119 | 76 | Edlefsen d. Barry Phillips Moore [AUS] | 6-3 7-5 | | | | | | | | | |
17‑Feb‑1975 | Fort Worth WCT | Hard | R16 | 119 | 40 | Vijay Amritraj [IND] d. Edlefsen | 6-4 3-6 6-2 | | | | | | | | | |
17‑Feb‑1975 | Fort Worth WCT | Hard | R32 | 119 | 12 | Edlefsen d. (1)Marty Riessen [USA] | 7-5 4-6 6-1 | | | | | | | | | |
10‑Feb‑1975 | Toronto Indoor WCT | Carpet | R32 | 119 | 32 | Mark Cox [GBR] d. Edlefsen | 6-0 6-4 | | | | | | | | | |
20‑Jan‑1975 | Philadelphia WCT | Carpet | R128 | 119 | 7 | (5)Arthur Ashe [USA] d. Edlefsen | 6-3 6-3 | | | | | | | | | |