2009 Prime Cup Aberto de São Paulo – Singles

Thiago Alves was the defending champion, but he lost to Horacio Zeballos in the quarterfinals.

Ricardo Mello defeated 6–2, 6–4 Paul Capdeville in the final.

Seeds
• # 🇧🇷 Marcos Daniel (second round, withdrew)

• # 🇦🇷 Brian Dabul (first round)

• # Paul Capdeville (final)

• # 🇧🇷 Thiago Alves (quarterfinals)

• # 🇦🇷 Leonardo Mayer (first round)

• # 🇦🇷 Sergio Roitman (first round)

• # 🇩🇪 Benjamin Becker (first round)

• # Pablo Cuevas (first round)