1988 Guarujá Open – Singles

Luiz Mattar successfully defended his title by defeating Eliot Teltscher 6–3, 6–3 in the final.

Seeds
• # 🇺🇸 Eliot Teltscher (final)

• # 🇧🇷 Luiz Mattar (champion)

• # 🇺🇸 Lawson Duncan (second round)

• # 🇦🇷 Javier Frana (second round)

• # Diego Pérez (quarterfinals)

• # Marcelo Filippini (second round)

• # 🇧🇷 Cássio Motta (quarterfinals)

• # 🇵🇪 Pablo Arraya (quarterfinals)