Seeded 6th in the medal round, Martinez beat Canadian veteran Jennifer Saunders, 15-2, 15-5, in the Round of 16, Mexican Samantha Salas, 15-4, 15-12, in the quarterfinals, and Argentina's Natalia Mendez, 15-8, 15-3, in the semi-finals, to set up a rematch of the 2016 final with 3-time defending champion Paola Longoria of Mexico.