Sex tests brought in after data showed 50-60 DSD athletes in finals, World Athletics says
Cheek swabs introduced for world championships
Data presented at scientific panel in Tokyo on Friday
Between 50 and 60 athletes who went through male puberty have been finalists in the female category in global and continental track and field championships since 2000, according to a senior World Athletics official.
World Athletics has introduced SRY screening, a gene test which uses a cheek swab to assess if someone is biologically male or female, for the world championships in Tokyo.