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Five WTA singles titles have been won by Polona Hercog, a professional tennis player from Slovenia. She achieved her first WTA singles triumph at the 2011 Copa Colsanitas in Bogotá, Colombia, and went on to win four more titles in her career: the 2012 Swedish Open, the 2019 Nürnberg Cup, and back-to-back titles at the 2021 İstanbul Cup and 2022 Bad Homburg Open.