1988 Transamerica Open – Singles

Peter Lundgren was the defending champion, but lost in the first round to David Pate.

Michael Chang won the title by defeating Johan Kriek 6–2, 6–3 in the final.

Seeds
• # 🇺🇸 Aaron Krickstein (first round)

• # 🇺🇸 Kevin Curren (quarterfinals)

• # 🇺🇸 John McEnroe (semifinals)

• # 🇸🇪 Mikael Pernfors (quarterfinals)

• # 🇺🇸 David Pate (second round)

• # 🇺🇸 Dan Goldie (second round)

• # 🇺🇸 Derrick Rostagno (first round)

• # 🇦🇺 Mark Woodforde (first round)