The WTA is moving its season-ending championships from Istanbul to Singapore and will revamp it into a 10-day event with music, entertainment and tennis-related symposiums. Speaking Monday ahead of the launch, WTA chief Stacey Allaster said ''we're ultimately in the entertainment business and trying to broaden our reach'' and ''expand our fan base.'' The event will be held from Oct. 17-26 this year at the Singapore Sports Hub's 7,500-seat indoor stadium, and prize money will be lifted by $500,000 to $6.5 million. Allaster said the tour was spending ''300 percent more'' on the championships in Singapore than in the past. More...