The 1988 Transamerica Open, also known as the Pacific Coast Championships, was a men's tennis tournament played on indoor carpet courts at the Cow Palace in San Francisco, California in the United States. The event was part of the Super Series of the 1988 Nabisco Grand Prix circuit. It was the 100th edition of the tournament and was held from September 26 through October 2, 1988. Unseeded Michael Chang won the singles title and earned $59,500 first-prize money. At age 16 he became the youngest winner of a Grand Prix Super Series event.[1]
See main article: 1988 Transamerica Open – Singles. 
Michael Chang defeated Johan Kriek 6–2, 6–3
See main article: 1988 Transamerica Open – Doubles. John McEnroe / 
Mark Woodforde defeated Scott Davis / Tim Wilkison 6–4, 7–6