1985 Transamerica Open – Singles

The 1985 Transamerica Open – Singles was an event of the 1985 Transamerica Open tennis tournament and was played on indoor carpet courts at the Cow Palace in San Francisco, California in the United States from September 23 through September 29, 1985. The draw comprised 32 players and eight of them were seeded. First-seeded John McEnroe was the defending Pacific Coast Championships singles champion but he lost in the quarterfinals. Third-seeded Stefan Edberg won the title by defeating sixth-seeded Johan Kriek in the final, 6–4, 6–2.

Seeds
• # 🇺🇸 John McEnroe (quarterfinals)

• # 🇺🇸 Kevin Curren (fFirst round)

• # 🇸🇪 Stefan Edberg (champion)

• # 🇺🇸 Eliot Teltscher (quarterfinals)

• # 🇺🇸 Tim Mayotte (quarterfinals)

• # 🇺🇸 Johan Kriek (final)

• # 🇺🇸 Brad Gilbert (quarterfinals)

• # 🇺🇸 David Pate (first round)