Russia's Mirra Andreeva extended her unbeaten run at the WTA Finals 2026 on Saturday, defeating USA's Jessica Pegula to reach the title clash, where the 19-year-old will face Ukraine's Elina Svitolina. She is the first teenager since Maria Sharapova in 2004 to reach the tournament's title match. "It was a tough match," Andreeva said after her 6-3, 6-4 victory.