26‑Dec‑1971 | Australian Open | Grass | R32 | | | Jean Paul Meyer [FRA] d. Letcher | 6-4 2-6 7-6 6-7 8-6 | | | | | | | | | |
26‑Dec‑1971 | Australian Open | Grass | R64 | | | Letcher d. Greg Perkins [AUS] | 6-1 0-6 7-6 6-4 | | | | | | | | | |
6‑Dec‑1971 | Brisbane | Grass | R16 | | | Rod Frawley [AUS] d. Letcher | 6-3 7-5 | | | | | | | | | |
6‑Dec‑1971 | Brisbane | Grass | R32 | | | Letcher d. Alvin Gardiner [AUS] | 7-6 6-4 | | | | | | | | | |
6‑Dec‑1971 | Brisbane | Grass | R64 | | | Letcher d. G Donald [AUS] | 6-2 6-4 | | | | | | | | | |
5‑Jul‑1971 | Munich | Clay | R32 | | | Martin Mulligan [AUS] d. Letcher | 6-0 6-1 6-3 | | | | | | | | | |
5‑Apr‑1971 | Johannesburg | Hard | R64 | | | Jan Leschly [DEN] d. Letcher | 6-1 6-1 6-1 | | | | | | | | | |
5‑Apr‑1971 | Johannesburg | Hard | R128 | | | Letcher d. Peter Tudhope [RSA] | 1-6 6-4 7-6 1-6 7-6 | | | | | | | | | |
29‑Mar‑1971 | Durban | Hard | R32 | | | Jan Leschly [DEN] d. Letcher | 6-3 6-2 | | | | | | | | | |
29‑Mar‑1971 | Durban | Hard | R64 | | | Letcher d. Dennis Hayes [RSA] | 6-3 6-2 | | | | | | | | | |
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 | | | | | | | | | |
18‑Jan‑1971 | Sydney Outdoor | Hard | R32 | | | Milan Holecek [CZE] d. Letcher | 6-1 6-3 7-6 | | | | | | | | | |
18‑Jan‑1971 | Sydney Outdoor | Hard | R64 | | | Letcher d. Elwyn Mccabe [AUS] | 6-3 5-7 7-5 | | | | | | | | | |