Cape Town - Caster Semenya had a tough week in the build-up to her 800m final on Sunday night.
Controversial British media personality Katie Hopkins had caused a storm on Twitter with a series of posts that suggested that it was not fair for Semenya, who has higher levels of testosterone than most women, to compete.
South Africans responded to Hopkins on Saturday in solid defence of Semenya, and when the 26-year-old won gold in Sunday's 800m final at the World Athletics Championships, she received messages of support from all corners.
It means that Semenya leaves London with two medals after also having won bronze in the women's 1 500m final.
Semenya seems used to dealing with the likes of Hopkins, and she posted a powerful message on Twitter on Saturday that seemed to be her response to what was going on.
"You may not be able to control every situation and its outcome, but you can control your attitude and how you deal with it," Semenya's post read.
Twitter responds to Caster Semenya gold: