Brasilia CH 1981
Pablo Arraya won the title, beating Thomaz Koch 6–3 3–6 6–4 in the final.
Main draw 48 players
- 1🇧🇷Marcos HocevarQuarterfinals · Lost to Pablo Arraya
- 2🇧🇷Thomaz KochFinal · Lost to Pablo Arraya
- 3🇧🇷Joao SoaresQuarterfinals · Lost to Alejandro Gattiker
- 4🇦🇷Gustavo GuerreroRound of 16 · Lost to Ricardo Rivera
- 5🇦🇷Roberto ArguelloRound of 16 · Lost to Bruce Kleege
- 6🇦🇷Gustavo TibertiRound of 64 · Lost to Jose Schmidt
- 7🇧🇷Cassio MottaRound of 16 · Lost to Pablo Arraya
- 8🇦🇷Carlos GattikerRound of 32 · Lost to Givaldo Barbosa
- 9🇦🇷Carlos LandoRound of 32 · Lost to Paschoal Penetta
- 10🇨🇴Javier RestrepoRound of 32 · Lost to Thomas Stalhandske
- 11🇵🇪Pablo ArrayaFinal · Champion
- 12🇦🇷Alejandro GattikerSemifinals · Lost to Thomaz Koch
- 13🇺🇸Bruce KleegeQuarterfinals · Lost to Ricardo Rivera
- 14🇧🇷Ney KellerRound of 16 · Lost to Joao Soares
- 15🇦🇷Andres MolinaRound of 16 · Lost to Thomaz Koch
- 16🇦🇷Ricardo RiveraSemifinals · Lost to Pablo Arraya
- 🇦🇷Thomas StalhandskeQuarterfinals · Lost to Thomaz Koch
- 🇧🇷Givaldo BarbosaRound of 16 · Lost to Thomas Stalhandske
- 🇧🇷Jose SchmidtRound of 16 · Lost to Alejandro Gattiker
- 🇧🇷Paschoal PenettaRound of 16 · Lost to Marcos Hocevar
- 🇦🇷Alejandro CerundoloRound of 32 · Lost to Alejandro Gattiker
- 🇧🇷Celso SacomandiRound of 32 · Lost to Bruce Kleege
- 🇧🇷Eduardo OncinsRound of 32 · Lost to Cassio Motta
- 🇧🇷Edvaldo OliveiraRound of 32 · Lost to Thomaz Koch
- 🇧🇷Eleuterio MartinsRound of 32 · Lost to Roberto Arguello
- 🇦🇷Horacio MarinRound of 32 · Lost to Andres Molina
- 🇧🇷Hugo ScottRound of 32 · Lost to Gustavo Guerrero
- 🇨🇱Ivan CamusRound of 32 · Lost to Pablo Arraya
- 🇦🇷Juan Carlos YunisRound of 32 · Lost to Ricardo Rivera
- 🇧🇷Julio GoesRound of 32 · Lost to Jose Schmidt
- 🇺🇸Nial BrashRound of 32 · Lost to Marcos Hocevar
- 🇬🇧Nigel SearsRound of 32 · Lost to Ney Keller
- 🇪🇨Raul Antonio ViverRound of 32 · Lost to Joao Soares
- 🇵🇹Aylton BorgesRound of 64 · Lost to Nigel Sears
- 🇧🇷Carlos ChabalgoityRound of 64 · Lost to Cassio Motta
- 🇧🇷Cesar SantoRound of 64 · Lost to Thomas Stalhandske
- 🇮🇹Fabrizio FanucciRound of 64 · Lost to Ricardo Rivera
- 🇧🇷Fernando RoeseRound of 64 · Lost to Nial Brash
- 🇧🇷Flavio ArenzonRound of 64 · Lost to Alejandro Cerundolo
- 🇺🇾Hugo RoveranoRound of 64 · Lost to Givaldo Barbosa
- 🇧🇷Ivan KleyRound of 64 · Lost to Thomaz Koch
- 🇬🇧Jeremy BatesRound of 64 · Lost to Carlos Lando
- 🇺🇸Mark BuckleyRound of 64 · Lost to Hugo Scott
- 🇺🇸Maurice HunterRound of 64 · Lost to Roberto Arguello
- 🇧🇷Paulo WildmannRound of 64 · Lost to Celso Sacomandi
- 🇧🇷Ricardo AciolyRound of 64 · Lost to Andres Molina
- 🇮🇹Roberto LombardiRound of 64 · Lost to Raul Antonio Viver
- 🇧🇷Roger GuedesRound of 64 · Lost to Pablo Arraya