| 1990-03-30 | Davis Cup G1 SF: PAR vs CAN | Clay | RR | 69 |  Andrew Sznajder | 933 |  Hugo Chapacu | 6-2 6-4 6-2 | H2H | 5 | - | - | - | - | - | - | - |
| 1989-07-21 | Davis Cup WG PO: SUI vs PAR | Clay | RR | 149 |  Claudio Mezzadri | 1043 | Hugo Chapacu | 7-6(3) 7-5 | H2H | 3 | - | - | - | - | - | - | - |
| 1989-07-21 | Davis Cup WG PO: SUI vs PAR | Clay | RR | 9 | Jakob Hlasek | 1043 | Hugo Chapacu | 7-6(8) 6-1 6-3 | H2H | 5 | - | - | - | - | - | - | - |
| 1989-02-03 | Davis Cup WG R1: USA vs PAR | Hard | RR | 3 |  Andre Agassi | 496 | Hugo Chapacu | 6-2 6-1 6-1 | H2H | 5 | - | - | - | - | - | - | - |
| 1989-02-03 | Davis Cup WG R1: USA vs PAR | Hard | RR | 29 | Michael Chang | 496 | Hugo Chapacu | 5-7 6-0 6-1 | H2H | 3 | - | - | - | - | - | - | - |
| 1988-09-19 | Seoul Olympics | Hard | R64 | 199 |  Andrei Cherkasov | 408 | Hugo Chapacu | 6-0 6-0 6-1 | H2H | 5 | - | - | - | - | - | - | - |
| 1988-02-05 | Davis Cup WG R1: TCH vs PAR | Carpet | RR | 6 |  Miloslav Mecir Sr. | 335 | Hugo Chapacu | 6-3 6-1 | H2H | 3 | - | - | - | - | - | - | - |
| 1988-02-05 | Davis Cup WG R1: TCH vs PAR | Carpet | RR | 92 |  Petr Korda | 335 | Hugo Chapacu | 6-2 6-1 6-2 | H2H | 5 | - | - | - | - | - | - | - |
| 1988-04-08 | Davis Cup WG PO: PAR vs NZL | Clay | RR | 323 | Hugo Chapacu | 211 |  Bruce Derlin | 6-0 6-2 6-3 | H2H | 5 | - | - | - | - | - | - | - |
| 1988-04-08 | Davis Cup WG PO: PAR vs NZL | Clay | RR | 323 | Hugo Chapacu | 54 | Kelly Evernden | 6-2 6-1 | H2H | 3 | - | - | - | - | - | - | - |
