Francine Niyonsaba of Burundi set a new world record in the 2,000m at the Continental Tour Gold competition in Zagreb.
Her time of 5:21.56 seconds was two seconds quicker than Genzebe Dibaba’s indoor record set in 2017.
Niyonsaba, a world and Olympic silver medalist in the 800m, is one of several athletes who have been barred from participating between the 400m and 1500m due to naturally high testosterone levels.
While Niyonsaba is one of a number of athletes having to change events as a result of a World Athletics regulation in 2019, she has excelled across longer distances.
Her world-record performance occurred a week after she won the Diamond League meeting in Zurich over 5,000m, breaking the outdoor mark set by Ireland’s Sonia O’Sullivan in 1994.
She finished fifth in the 10,000m final at the Tokyo Olympics, but was disqualified from her 5,000m heat due to a lane violation.
She went on to become the fifth-fastest woman in history over 3,000 meters later that summer.
Later in the summer she became the fifth-fastest woman of all time over 3,000m.
Source: BBC Sport