2020 Argentina Open – Singles

Casper Ruud became the first Norwegian to win an ATP title, defeating Pedro Sousa in the final, 6–1, 6–4.

Marco Cecchinato was the defending champion, but lost in the first round to Roberto Carballés Baena.

Seeds
The top four seeds received a bye into the second round. • #🇦🇷 Diego Schwartzman (semifinals, withdrew)

• #🇦🇷 Guido Pella (quarterfinals)

• #🇷🇸 Dušan Lajović (quarterfinals)

• # Borna Ćorić (second round)

• # Cristian Garín (withdrew)

• #🇷🇸 Laslo Đere (second round)

• #🇪🇸 Albert Ramos Viñolas (second round)

• #🇳🇴 Casper Ruud (champion)

Seeds
• # 🇪🇸 Alejandro Davidovich Fokina (first round)

• # 🇮🇹 Salvatore Caruso (first round)

• # 🇭🇺 Attila Balázs (first round)

• # 🇦🇷 Federico Coria (first round)

• # 🇮🇹 Federico Gaio (first round)

• # 🇸🇰 Jozef Kovalík (qualified)

• # 🇮🇹 Gianluca Mager (first round)

• # 🇦🇷 Facundo Bagnis (qualified)

Qualifiers
• # 🇸🇰 Jozef Kovalík

• # 🇦🇷 Facundo Bagnis

• # 🇪🇸 Pedro Martínez

• # 🇸🇰 Filip Horanský

Lucky losers
• # Pedro Sousa

• # João Domingues