VIDEO SHOWS: CASTER SEMENYA WINNING THE 800 METRES SHOWS: DOHA, QATAR (MAY 3, 2019) (IMG - SEE RESTRICTIONS) 1.
CASTER SEMENYA PREPARING ON THE START LINE 2.
IAAF PRESIDENT SEBASTIAN COE (ON RIGHT) 3.
CASTER SEMENYA ANNOUNCED TO THE CROWD AND WAVES 4.
START OF THE RACE, SEMENYA IN LANE 8 5.
SEMENYA IN SECOND PLACE AT THE END OF THE FIRST LAP BEHIND PACEMAKER NOELIE YARIGO 6.
YARIGO DROPS OUT WITH 300 METRES TO GO TO LEAVE SEMENYA IN THE LEAD 7.
SEMENYA LEADING FROM FRANCINE NIYONSABA ON THE FINAL BEND 8.
SEMENYA PULLS AWAY TO WIN BY OVER TEN METRES FROM NIYONSABA 9.
SEMENYA CELEBRATES BY THROWING HER FLOWERS INTO THE CROWD AND IS EMBRACED BY YARIGO 10.
SEMENYA GIVES THUMBS UP TO CAMERA 11.
CLOSE UP OF SEMENYA STORY: Double Olympic champion Caster Semenya won her last 800 metres race on Friday (May 3) before the introduction of controversial rules limiting testosterone levels in female athletes which she had battled for years to stop.
The South African was running at the Diamond League meeting in Doha, Qatar two days after the Court of Arbitration for Sport (CAS) rejected her appeal to get the governing body's (International Association of Athletics Federations) new regulations thrown out.
She must now begin taking medication to lower her testosterone levels if she wishes to compete over that distance based on the new rules, which CAS said on Wednesday (May 1) were necessary to ensure fair competition.
Under the rules to take effect on May 8, female athletes with high natural levels of testosterone wishing to compete in events from 400 metres to a mile must medically limit that level to under 5 nmol/L, which is double the normal female range of below 2 nmol/L.
Testosterone is a hormone that increases muscle mass, strength and haemoglobin - which affects endurance.
Semenya won her 30th successive race over the distance in one minute 54.98 seconds.