CHARLESTON: Denmark's Caroline Wozniacki stayed on course for back-to-back claycourt titles when she reached the Charleston final Saturday with a 6-4, 5-7, 7-5 win over Russian top seed Elena Dementieva. The 18-year-old Wozniacki, the world number 12 who won the Ponte Vedra Beach title in Florida last weekend, came out on top after a three-hour battle with world number five Dementieva. It would have been a shorter match had she converted one of the three match points she had in the second set when she was leading 5-3. In Sunday's final, Wozniacki will face German 16th seed Sabine Lisicki who defeated French sixth seed Marion Bartoli 6-3, 6-1. The 19-year-old German, who put out Venus Williams in the third round, won nine of the last 10 games to reach the final. Caroline Wozniacki, seen here in March 2008, stayed on course for back-to-back claycourt titles when she reached the Charleston final Saturday with a 6-4, 5-7, 7-5 win over Russian top seed Elena Dementieva.