The revised rule allows 14-year-olds to compete in 12 tournaments, major or minor, in addition to the Virginia Slims Championships.
In 1988, she handed Navratilova her only indoor loss of the year at the Virginia Slims Championships.
A premier event, the $3 million Virginia Slims Championships, is in town this week.
Seles has won the year-end tournament, previously known as the Virginia Slims Championships, three times.
The theme for the night was attack at all costs in the quarterfinal round of the Virginia Slims Championships; she who hesitated, lost.
From 1972-1978, the event was known as the Virginia Slims Championships.
Graf last lost in the final of the Virginia Slims Championships last December.
They played three times in a row at the Virginia Slims Championships and in March 1986 advanced there to semifinals.
When she actually retires this week at the Virginia Slims Championships, the 38-year-old will do so with the distinction of being the greatest woman player ever.
The Virginia Slims Championships was held twice in 1986 because of a change of schedule from March to November.