South Africa in Marathon Swimming

2008 Summer Olympics

10 kilometres Open Water, Men Chad Ho 9
10 kilometres Open Water, Women Natalie du Toit 16

2012 Summer Olympics

10 kilometres Open Water, Men Troy Prinsloo 12
10 kilometres Open Water, Women Jessica Roux DNF

2016 Summer Olympics

10 kilometres Open Water, Men Chad Ho 10
10 kilometres Open Water, Women Michelle Weber 18

2020 Summer Olympics

10 kilometres Open Water, Men Michael McGlynn 8
10 kilometres Open Water, Women Michelle Weber 21