Tour · 1981-01-19 · draw of 32
Guaruja 1981
HardFinal
| 🇧🇷 Carlos Kirmayr | d. | 🇦🇷 Ricardo Cano | 6-4 6-2 | H2H |
Semifinals
| 🇦🇷 Ricardo Cano | d. | 🇸🇪 Kjell Johansson | 6-4 6-4 | H2H |
| 🇧🇷 Carlos Kirmayr | d. | 🇷🇴 Ilie Nastase | 6-4 6-3 | H2H |
Quarterfinals
| 🇷🇴 Ilie Nastase | d. | 🇪🇸 Angel Gimenez | 7-5 7-5 | H2H |
| 🇦🇷 Ricardo Cano | d. | 🇫🇷 Eric Deblicker | 4-6 6-2 6-4 | H2H |
| 🇸🇪 Kjell Johansson | d. | 🇺🇸 Bill Scanlon | 7-5 6-3 | H2H |
| 🇧🇷 Carlos Kirmayr | d. | 🇺🇸 Eddie Dibbs | 6-3 6-3 | H2H |
Round of 16
| 🇷🇴 Ilie Nastase | d. | 🇺🇸 Rick Fagel | 6-1 3-6 6-1 | H2H |
| 🇸🇪 Kjell Johansson | d. | 🇦🇺 Paul Kronk | 6-4 7-6 | H2H |
| 🇪🇸 Angel Gimenez | d. | 🇦🇺 David Carter | 7-6 6-0 | H2H |
| 🇦🇷 Ricardo Cano | d. | 🇸🇪 Stefan Simonsson | 6-3 6-4 | H2H |
| 🇧🇷 Carlos Kirmayr | d. | 🇩🇪 Harald Theissen | 6-2 6-1 | H2H |
| 🇫🇷 Eric Deblicker | d. | 🇵🇾 Victor Pecci | 7-6 6-3 | H2H |
| 🇺🇸 Bill Scanlon | d. | 🇺🇸 Henry Pfister | 6-2 0-1 RET | H2H |
| 🇺🇸 Eddie Dibbs | d. | 🇦🇷 Guillermo Aubone | 6-3 6-4 | H2H |
Round of 32
| 🇩🇪 Harald Theissen | d. | 🇨🇴 Jairo Velasco Sr. | 6-4 2-6 6-4 | H2H |
| 🇸🇪 Stefan Simonsson | d. | 🇺🇾 Diego Perez | 6-1 1-0 RET | H2H |
| 🇺🇸 Henry Pfister | d. | 🇪🇸 Jose Lopez-Maeso | 6-3 3-6 6-0 | H2H |
| 🇷🇴 Ilie Nastase | d. | 🇧🇷 Ney Keller | 7-5 6-2 | H2H |
| 🇦🇺 Paul Kronk | d. | 🇪🇸 Gabriel Urpi | 6-0 6-2 | H2H |
| 🇪🇸 Angel Gimenez | d. | 🇺🇸 Howard Schoenfield | 6-0 6-0 | H2H |
| 🇫🇷 Eric Deblicker | d. | 🇵🇪 Pablo Arraya | 7-5 6-4 | H2H |
| 🇦🇷 Guillermo Aubone | d. | 🇧🇷 Roger Guedes | 6-3 7-6 | H2H |
| 🇧🇷 Carlos Kirmayr | d. | 🇫🇷 Christophe Freyss | 6-2 6-2 | H2H |
| 🇦🇷 Ricardo Cano | d. | 🇧🇷 Thomaz Koch | 6-4 6-3 | H2H |
| 🇦🇺 David Carter | d. | 🇧🇷 Marcos Hocevar | 6-2 4-6 6-1 | H2H |
| 🇸🇪 Kjell Johansson | d. | 🇧🇴 Mario Martinez | 6-2 6-1 | H2H |
| 🇵🇾 Victor Pecci | d. | 🇺🇸 Steve Meister | 6-3 1-6 6-4 | H2H |
| 🇺🇸 Rick Fagel | d. | 🇪🇸 Jose Higueras | 6-4 6-4 | H2H |
| 🇺🇸 Bill Scanlon | d. | 🇧🇷 Joao Soares | 6-2 6-0 | H2H |
| 🇺🇸 Eddie Dibbs | d. | 🇵🇪 Fernando Maynetto | 7-5 6-3 | H2H |