2013 Copa San Juan Gobierno – Singles

Thiemo de Bakker was the defending champion but chose not to compete. Guido Andreozzi defeated top seed Diego Sebastián Schwartzman 6–7(5–7), 7–6(7–4), 6–0.

Seeds
• # 🇦🇷 Diego Schwartzman (final)

• # 🇦🇷 Martín Alund (quarterfinals)

• # 🇷🇺 Andrey Kuznetsov (first round)

• # 🇪🇸 Rubén Ramírez Hidalgo (second round)

• # 🇦🇷 Facundo Bagnis (quarterfinals)

• # 🇦🇷 Máximo González (semifinals)

• # 🇦🇷 Facundo Argüello (first round)

• # 🇦🇷 Guido Andreozzi (champion)