The 2004 WTA Tour Championships  Singles, where Kim Clijsters was the defending champion, was particpated by US players Lindsay Davenport and Serena Williams and Russian players Anastasia Myskina and Elena Dementieva.
Kim Clijsters was the defending champion, but she did not qualify this year following a long-term wrist injury. Lindsay Davenport Serena Williams Anastasia Myskina Elena Dementieva 
