22‑Oct‑1984 | Hong Kong | Hard | R32 | 101 | 275 | Pat Dupre [USA] d. Edmondson | 6-2 6-2 | | | | | | | | | |
31‑Oct‑1983 | Hong Kong | Hard | SF | 38 | | Wally Masur [AUS] d. (3)Edmondson | 6-3 6-3 | | | | | | | | | |
31‑Oct‑1983 | Hong Kong | Hard | QF | 38 | 84 | (3)Edmondson d. Nduka Odizor [NGR] | 6-4 6-2 | | | | | | | | | |
31‑Oct‑1983 | Hong Kong | Hard | R16 | 38 | | (3)Edmondson d. Drew Gitlin [USA] | 7-6 6-3 | | | | | | | | | |
31‑Oct‑1983 | Hong Kong | Hard | R32 | 38 | | (3)Edmondson d. (Q)Scott Mccain [USA] | 7-6 6-2 | | | | | | | | | |
2‑Nov‑1981 | Hong Kong | Hard | F | 34 | 83 | Van Winitsky [USA] d. (5)Edmondson | 6-4 6-7 6-4 | | | | | | | | | |
2‑Nov‑1981 | Hong Kong | Hard | SF | 34 | 58 | (5)Edmondson d. Tim Gullikson [USA] | 6-3 7-6 | | | | | | | | | |
2‑Nov‑1981 | Hong Kong | Hard | QF | 34 | 28 | (5)Edmondson d. (2)John Sadri [USA] | 7-6 6-4 | | | | | | | | | |
2‑Nov‑1981 | Hong Kong | Hard | R16 | 34 | 93 | (5)Edmondson d. Brad Drewett [AUS] | 6-0 6-2 | | | | | | | | | |
2‑Nov‑1981 | Hong Kong | Hard | R32 | 34 | | (5)Edmondson d. Louk Sanders [NED] | 1-6 7-6 6-4 | | | | | | | | | |
3‑Nov‑1980 | Hong Kong | Hard | R32 | 71 | 80 | Wolfgang Popp [GER] d. Edmondson | 6-4 6-2 | | | | | | | | | |
5‑Nov‑1979 | Hong Kong | Hard | QF | | 5 | (2)Roscoe Tanner [USA] d. Edmondson | 6-2 6-4 | | | | | | | | | |
5‑Nov‑1979 | Hong Kong | Hard | R16 | | 45 | Edmondson d. (6)Robert Lutz [USA] | 6-3 7-5 | | | | | | | | | |
5‑Nov‑1979 | Hong Kong | Hard | R32 | | | Edmondson d. John Chris Lewis [USA] | 6-3 7-5 | | | | | | | | | |
6‑Nov‑1978 | Hong Kong | Hard | R32 | 68 | 35 | (4)Ken Rosewall [AUS] d. (Q)Edmondson | 6-1 6-3 | | | | | | | | | |