28‑Dec‑1982 | Melbourne | Grass | R16 | | | Brad Drewett [AUS] d. Letcher | 6-2 4-6 6-4 | | | | | | | | | |
28‑Dec‑1982 | Melbourne | Grass | R32 | | | Letcher d. Charlie Fancutt [AUS] | 6-4 7-6 | | | | | | | | | |
21‑Oct‑1974 | Melbourne | Clay | QF | 282 | 2 | John Newcombe [AUS] d. Letcher | 7-5 7-6 | | | | | | | | | |
21‑Oct‑1974 | Melbourne | Clay | R16 | 282 | 211 | Letcher d. Neale Fraser [AUS] | 6-1 3-6 6-3 | | | | | | | | | |
21‑Oct‑1974 | Melbourne | Clay | R32 | 282 | 132 | Letcher d. Jeff Austin [USA] | 6-0 3-6 6-3 | | | | | | | | | |
23‑Jan‑1971 | Melbourne | Grass | R32 | | | Colin Stubs [AUS] d. Letcher | 6-1 6-1 6-2 | | | | | | | | | |
23‑Jan‑1971 | Melbourne | Grass | R64 | | | Letcher d. Vladimir Zednik [CZE] | 7-5 7-5 6-3 | | | | | | | | | |