Martina Navratilova defeated Evonne Goolagong Cawley in the final, 7–6, 6–4 to win the singles tennis title at the 1978 Virginia Slims Championships. It was her first Tour Finals singles title, and the first of an eventual record eight such titles.
Chris Evert was the reigning champion, but did not qualify this year.
Seeds
Draw
Finals
Round robin
Gold group
Orange group
See also WTA Tour Championships appearances
References Official Results Archive (ITF) Official Results Archive (WTA)