Ana Ivanovic clinched victory in her last WTA Finals round robin match, but has failed to reach the semi-finals of the tournament.
Despite securing a 7-6(7) 3-6 6-3 victory, Ivanovic's season is over as Simona Halep books her place in the final four following two victories and a defeat.
Both players struggled to hold serve in the opening set as they were broken three times each, which forced the set into a tie-break, but it was Ivanovic who edged it 9-7.
The second set was a less hectic affair, but Halep was able to respond to force the match into a decider with two breaks of serve.
It was a tight contest in the third set, but Ivanovic ended her season with a victory by grabbing the only break of the set to beat Halep in Singapore.