British fencer Natalia Sheppard has advanced to the last 16 of the women's individual foil after beating Polish opponent Julia Walczyk.
Sheppard lost the first period 4-3, before drawing the second 5-5 and turning on the style in the third, winning 13-7.
Walczyk, aged just 17, is ranked 31st in the world, 95 places behind the Brit.
Sheppard will now face Carolin Golubytskyi from Germany, ranked 18th in the world.