The 19-year-old Kabo Tladi from Makapanstad was announced the top performing girl in township schools in Gauteng.
She did her grade 12 at Sikhululekile Secondary School, Tshwane North, also came top in the secondary school improvement programme.
Ms Tladi got seven distinctions in Setswana home language, English first language, geography, physical sciences, mathematics, life sciences and for life orientation.
Ms Tladi plans to study astrophysics at the University of Cape Town. Astrophysics is a branch of space science that applies the laws of physics and chemistry to explain the birth, life and death of stars, planets, galaxies and other objects.