A squad of eight athletes landed in Gaborone earlier on Friday in search for a World Relays Championships qualifier in two events.
Chasing a slot in the 4x100m and Mixed Relays, a strong contigent of athletes will contest the Lefika international relays taking place on Saturday in the capital.
For South Africa, this is a race against time as the window of opportunity nears closure. Teams must qualify before the 5 April deadline.
Among the teams also participating are hosts Botswana, South Africa, Kenya, Nigeria, Lesotho and Zimbabwe.
THE FULL SQUAD:
Miranda Coetzee, Jovial Mbisha, Tamzin Gelant, Chardone Smidt, Leonette Vosloo, Tsebo Matsoso, Retshi Mlenga and Cheswill Johnson