24‑Dec‑1981 | Australian Open | Grass | R64 | | 18 | (4)Johan Kriek [USA] d. Gitlin | 6-2 7-5 6-1 | | | | | | | | | |
14‑Dec‑1981 | Sydney Outdoor | Grass | R64 | | 33 | (8)Paul Mcnamee [AUS] d. Gitlin | 6-3 3-6 6-3 | | | | | | | | | |
23‑Nov‑1981 | Manila | Clay | SF | | 53 | (3)Ramesh Krishnan [IND] d. Gitlin | 6-2 6-3 | | | | | | | | | |
23‑Nov‑1981 | Manila | Clay | QF | | | Gitlin d. Brad Gilbert [USA] | 3-6 6-4 6-0 | | | | | | | | | |
23‑Nov‑1981 | Manila | Clay | R16 | | 325 | Gitlin d. Robert Reininger [AUT] | 6-1 6-3 | | | | | | | | | |
23‑Nov‑1981 | Manila | Clay | R32 | | 163 | Gitlin d. Ross Case [AUS] | 7-6 6-3 | | | | | | | | | |
2‑Nov‑1981 | Hong Kong | Hard | R32 | | 14 | (2)John Sadri [USA] d. Gitlin | 6-3 3-6 6-1 | | | | | | | | | |
26‑Oct‑1981 | Tokyo Indoor | Carpet | R32 | | | (LL)Chris Dunk [USA] d. Gitlin | 6-2 6-7(3) 7-5 | | | | | | | | | |
19‑Oct‑1981 | Tokyo Outdoor | Clay | R32 | | 22 | (2)Balazs Taroczy [HUN] d. Gitlin | 6-4 6-2 | | | | | | | | | |
19‑Oct‑1981 | Tokyo Outdoor | Clay | R64 | | 335 | Gitlin d. Beejong Sisson [PHI] | 6-1 3-6 7-5 | | | | | | | | | |
1‑Sep‑1981 | US Open | Hard | R128 | | 4 | (6)Guillermo Vilas [ARG] d. Gitlin | 6-3 6-7 6-0 6-4 | | | | | | | | | |
17‑Aug‑1981 | Atlanta | Hard | R32 | | 10 | (1)Eliot Teltscher [USA] d. Gitlin | 7-5 6-3 | | | | | | | | | |