Seles defended her WTA Tour Championships crown, defeating Navratilova.
On November 24, 1991, Monica Seles captured her second consecutive WTA Tour Championships title, a premier event hosted at Madison Square Garden in New York. She earned the championship by overcoming Martina Navratilova in a decisive final, establishing herself as a consistent performer at top-level competitions.
The victory highlighted Seles's continued dominance throughout the year, showcasing not just her physical strength and skill but her strategic competitiveness. Winning back-to-back titles at the year-end championships cemented her position as the most accomplished player of the year, reiterating her status as a leading figure in women's professional tennis.