South Africa has three athletes doing duty on day five of the IAAF World Championships in London on Tuesday.
Evening session (all times SA)
8.30pm: 200-metre heats – Justine Palframan (heat two, 8.38pm)
What she has to do: Finish in the top three in her heat for be one of the next three quickest in the round of heats
9.35pm: 400m hurdles semi-finals – Wenda Nel
What she has to do: Finish in the first two of the semi-final or be one of the next two quickest in the semi-finals
10.52pm: 400m final – Wayde van Niekerk