And even though she came last in the final heat of the 800m, the 19-year-old is aware that was the least important aspect of a historic day.
'It is the hugest honour to be here to represent the women of Saudi Arabia,' she said.
'It is a historic moment. I hope it will make a difference. It is a huge step forward. It's a really incredible experience.'
Attar finished in a time of 2:44.95.
She will now return to Pepperdine University in California.