This week's Bank of the West Classic in Stanford, California, reaches a notable milestone as the tournament celebrates its 40th year -- the oldest WTA Tour event on the circuit. The tournament has been hosted in the grounds of Stanford University for the past 14 years, after various different venues in the North California area, and its roll-call of former winners reads like a who's - who of women's tennis. Martina Navratilova holds the record for most singles titles, with five between 1979 and 1993. Reigning U.S. Open champion Kim Clijsters has four wins, with American legends Chris Evert and Lindsay Davenport and Billie Jean King with three victories each. And, in recognition of reaching the landmark, tournament organizers have arranged a special presentation before the semifinals on Saturday July 31. Four former champions, each representing a different decade, will be paraded; inuaugural champion King -LRB- 1970s -RRB-, two-time champion Andrea Jaeger -LRB- 1980s -RRB-, Davenport -LRB- 1990s -RRB- and defending champion Marion Bartoli -LRB- 2000s -RRB-. It was fitting that King won the initial tournament, as she had fought so hard for the introduction of the WTA Tour. And, the 1971 tournament at the San Francisco Civic Auditorium, in which King beat Rosie Casals in the final of an event then known as the British Motor Cars Invitational, was to become the first of 24 events