2020 Cleveland Open – Singles

Maxime Cressy was the defending champion but lost in the third round to Ulises Blanch.

Mikael Torpegaard won the title after defeating Yosuke Watanuki 6–3, 1–6, 6–1 in the final.

Seeds
All seeds receive a bye into the second round. • # 🇺🇸 Denis Kudla (quarterfinals)

• # 🇦🇺 Christopher O'Connell (second round)

• # 🇦🇹 Sebastian Ofner (second round)

• # 🇰🇿 Dmitry Popko (second round)

• # Alejandro Tabilo (third round)

• # 🇺🇸 J. J. Wolf (third round)

• # 🇧🇷 João Menezes (second round)

• # 🇺🇸 Michael Mmoh (third round)

• # 🇺🇸 Ernesto Escobedo (semifinals)

• # 🇩🇴 Roberto Cid Subervi (second round)

• # 🇪🇸 Adrián Menéndez Maceiras (second round)

• # Mikael Torpegaard (champion)

• # 🇫🇷 Arthur Rinderknech (second round)

• # 🇩🇪 Tobias Kamke (second round)

• # 🇺🇸 Sebastian Korda (third round)

• # 🇰🇷 Nam Ji-sung (second round)