The two 18-year-old female runners are ineligible under the same contentious rules that have sidelined South Africa's Caster Semenyahttps://t.co/odIsJr26pw— CBC Olympics (@CBCOlympics) July 2, 2021
Two 18-year-old female runners from Namibia, Christine Mboma and Beatrice Masilingi, won't be allowed to run in the 400 metres at the Tokyo Olympics after medical tests showed they have high natural testosterone levels.
They will now "focus their full attention" on the 200 metres, Namibia's athletics federation said.
That makes them ineligible under the same contentious rules that have sidelined Caster Semenya.
The rules have affected two other athletes, Francine Niyonsaba of Burundi and Margaret Wambui of Kenya.
World Athletics' testosterone rules only apply to events between 400 metres and one mile.
Before this year, both teenagers were relative unknowns.
Beatrice Masilingi ran 49.53 seconds in the 400 m race, thus setting an unofficial third-fastest world under-20 time in history. pic.twitter.com/TmKs5ncP5a— Africa Facts Zone (@AfricaFactsZone) July 2, 2021