2004 Copa Petrobras Santiago – Singles

Óscar Hernández defeated Nicolás Lapentti 7–6(7–4), 6–4 in the final.

Seeds
• # 🇪🇸 Óscar Hernández (champion)

• # 🇧🇷 Flávio Saretta (second round)

• # Adrián García (first round)

• # 🇨🇿 Jiří Vaněk (second round)

• # 🇦🇷 Edgardo Massa (second round)

• # 🇦🇷 Franco Squillari (second round, retired due to a back injury)

• # 🇧🇷 André Sá (first round)

• # 🇪🇨 Nicolás Lapentti (final)

Bottom half

 * Draw source