Caster Semenya to release its findings from her gender test. On 6 July, the IAAF cleared Semenya to return to international competition. The results of the gender tests, however, were not released for privacy reasons. She returned to competition nine days later winning two minor races in Finland. On 22 August 2010, running on the same track as her World Championship victory, Semenya started slowly but finished strongly, dipping under 2:00 for the first time since the controversy, while winning the ISTAF meet in Berlin. Not being on full form, she did not enter the World Junior Championships or the African Championships,
Caster Semenya by four seconds at the African Junior Championships just a month earlier, her quick improvements came under scrutiny. The combination of her rapid athletic progression and her appearance culminated in the International Association of Athletics Federations (IAAF) asking her to take a sex verification test to ascertain whether she was female. The IAAF says it was "obliged to investigate" after she made improvements of 25 seconds at 1500 m and eight seconds at 800 m – "the sort of dramatic breakthroughs that usually arouse suspicion of drug use". The sex test results were never published officially, but some results were