18‑Jun‑1984 | Bristol | Grass | R16 | 87 | 42 | (6)Tim Gullikson [USA] d. Edmondson | 6-2 3-6 6-3 | | | | | | | | | |
25‑Oct‑1982 | Tokyo Indoor | Carpet | R32 | 15 | 73 | (7)Edmondson d. Tim Gullikson [USA] | 7-6 6-4 | | | | | | | | | |
25‑Apr‑1982 | Las Vegas | Hard | R32 | 16 | 61 | Edmondson d. (Q)Tim Gullikson [USA] | 7-6 6-2 | | | | | | | | | |
9‑Nov‑1981 | Taipei | Carpet | QF | 30 | 51 | (4)Edmondson d. (8)Tim Gullikson [USA] | 6-3 3-6 6-4 | | | | | | | | | |
2‑Nov‑1981 | Hong Kong | Hard | SF | 34 | 58 | (5)Edmondson d. Tim Gullikson [USA] | 6-3 7-6 | | | | | | | | | |
14‑Jan‑1980 | Baltimore WCT | Carpet | QF | 87 | 26 | (3)Tim Gullikson [USA] d. Edmondson | 6-2 7-5 | | | | | | | | | |
18‑Oct‑1976 | Sydney Indoor | Hard | R32 | | | Edmondson d. Tim Gullikson [USA] | 6-1 6-2 | | | | | | | | | |