23‑Apr‑1990 | Hong Kong | Hard | R32 | | 229 | (Q)Jonathan Canter [USA] d. (Q)Stefanki | 6-1 6-4 | | | | | | | | | |
18‑Nov‑1985 | Hong Kong | Hard | R16 | 62 | 84 | Jonathan Canter [USA] d. Stefanki | 6-4 6-2 | | | | | | | | | |
18‑Nov‑1985 | Hong Kong | Hard | R32 | 62 | 130 | Stefanki d. Glenn Layendecker [USA] | 7-5 6-4 | | | | | | | | | |
31‑Oct‑1983 | Hong Kong | Hard | R16 | | | Rod Frawley [AUS] d. (Q)Stefanki | 1-6 6-1 6-4 | | | | | | | | | |
31‑Oct‑1983 | Hong Kong | Hard | R32 | | 30 | (Q)Stefanki d. (2)Robert Vant Hof [USA] | 6-2 7-6 | | | | | | | | | |
1‑Nov‑1982 | Hong Kong | Hard | R32 | | 78 | Guy Forget [FRA] d. Stefanki | 7-6 3-6 6-0 | | | | | | | | | |
2‑Nov‑1981 | Hong Kong | Hard | R32 | | | Chris Mayotte [USA] d. Stefanki | 7-6 6-2 | | | | | | | | | |