South Africa's campaign came to a close on Sunday with three road runners competing in the morning session on the final day of competition at the World Athletics Championships in Budapest, Hungary.
Tumelo Motlagale was the top South African finisher in the men's marathon, taking 51st place in a field of 84 athletes. He completed the 42.2km race in 2:22:14.
Simon Sibeko ended 60th in 2:31.59 and Melikhaya Frans was one of 24 athletes who did not reach the finish in tough conditions.
Ugandan athlete Victor Kiplangat won the race, securing the gold medal in 2:08:53.
It was another tough day out for the SA team after Saturday gave hope, but had eventually struggled to make an impact at the World Athletics Championships in Budapest to find a medal.
Having coasted into the final, the national 4x100m relay squad - Shaun Maswanganyi, Benjamin Richardson, Clarence Munyai and Akani Simbine - did not reach the finish on Saturday due to an error at the second changeover.
In their absence, the United States went on to win gold in 37.38 seconds.
Earlier, in the morning session, Irvette van Zyl had inished 45th in a field of 77 runners in the women's marathon.
Van Zyl completed the 42.2km race in 2:38:32, with Amane Beriso Shankule of Ethiopia securing the gold medal in 2:24:23.
Ischke Senekal settled for 32nd position in the qualifying round of the women's shot put.
Senekal's best attempt landed at 16.20m and she did not secure a place in the final.
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About Athletics South Africa:
Athletics South Africa (ASA) is the national governing body for the sport of athletics (including Track and Field, Cross Country, Road Running and Race Walking) in South Africa, is a member of World Athletics and the Confederation of African Athletics. The association was formed in 1995 and is based in Johannesburg.