(AP Photo/David J. Phillip, File) In this Aug. 13, 2017, file photo, South Africa's Caster Semenya celebrates after winning the gold in the final of the Women's 800m during the World Athletics Championships in London. Caster Semenya will find out Wednesday, May 1, 2019 if she has won her appeal against IAAF rules to curb female runners' high natural levels of testosterone.