In the fall of 1988, Pereira registered wins on the pro tour against Brad Gilbert and Amos Mansdorf.

3 Stefan Edberg in straight sets in the first round of the Queens Club grass-court tournament.

Later that summer, he reached the quarterfinals of the Grand Prix event in Montreal, the Canadian Open.

In 1990, he lost most of his matches in the first round of ATP level tournaments and finished the year ranked No.

In 1991, he won the Lins and São Paulo-4 Challengers in back-to-back weeks, and ended the year ranked No.

In September, Pereira defeated Mauricio Hadad in the final of the Bancolombia Open to win his first ATP singles title.

In July, he won the Rio Brazil Challenger title by defeating João Cunha e Silva in straight sets.

1 Thomas Muster in straight sets at the Masters Series tournament in Key Biscayne, Florida.

In July, Pereira won his second ATP title, defeating Grant Stafford on the grass courts at Newport, Rhode Island.

Pereira represented Venezuela at the 1996 Summer Olympics in Atlanta, losing in the second round to eventual bronze medalist Leander Paes.