A member or Mpumalanga Athletics,[4] Erasmus won gold in the shot put and the discus at the South African U18 Track And Field Championships in Potchefstroom. In the shot put competition she threw 18.15 metres (59.5 ft), nearly three metres clear of her nearest opponent, and comfortably clear of the previous South African youth record of 17.52 metres (57.5 ft) which was set by Lezaan Jordaan in Germiston in April 2012. In the discus she produced a personal best of 51.77 metres (169.8 ft).[5][6]
Erasmus won gold in both the shot put and the discus at the African U20 Championships in Ndola, Zambia in 2023.[7] She became South African senior national champion in the shot put in 2023.[8]
Erasmus won shot put gold at the 2023 African Games in Accra in March 2024 with a personal best of 16.98 metres (55.7 ft).[9] She finished seventh in the discus at the same event with a throw of 51.85 metres (170.1 ft).[10] In April 2024, she won the shot put at the South African national championship in Pietermaritzburg with a 17.27 metres (56.7 ft) distance.[11] She finished third in the discus at the same event.[12]