1985 U.S. Pro Tennis Championships – Singles

Aaron Krickstein was the defending champion, but lost in the second round to Guillermo Vilas.

Mats Wilander won the title by defeating Martín Jaite 6–2, 6–4 in the final.

Seeds
The top eight seeds received a bye to the second round. • # 🇸🇪 Mats Wilander (champion)

• # (n/a)

• # Miloslav Mečíř (third round)

• # 🇺🇸 Aaron Krickstein (second round)

• # 🇸🇪 Henrik Sundström (quarterfinals)

• # 🇦🇷 José Luis Clerc (second round)

• # 🇺🇸 Jimmy Arias (second round)

• # Libor Pimek (quarterfinals)

• # Víctor Pecci (first round)

• # 🇮🇹 Francesco Cancellotti (second round)

• # 🇦🇷 Martín Jaite (final)

• # 🇪🇸 José Higueras (first round)

• # 🇺🇸 Tim Wilkison (third round)

• # Hans Schwaier (second round)

• # 🇺🇸 Lawson Duncan (first round)

• # Jakob Hlasek (second round)