Top-seeded Caroline Wozniacki reached the Tournament of Champions final after beating Tsvetana Pironkova of Bulgaria 6-4, 6-1 on Saturday.

In Sunday's final, Wozniacki will play the winner of the second semifinal between Nadia Petrova of Russia and Roberta Vinci of Italy.

Supported by an enthusiastic crowd in Sofia's Arena Armeec Hall, Pironkova matched Wozniacki at 4-4 in the first set. But the Dane streaked to a 5-0 lead in the second.