Peres Jepchirchir, the women's world marathon champion and Olympic gold medallist, has been provisionally suspended after an out-of-competition sample tested positive for the banned blood booster EPO, the Athletics Integrity Unit announced on Friday. The 33-year-old Kenyan is one of the sport's most decorated distance runners. The Guardian reports that the AIU is investigating the finding.
Why it matters
The suspension lands on a career that includes Olympic gold at the Tokyo Games in 2021, a half-marathon world record and four World Marathon major titles. It also deepens a difficult period for Kenyan athletics. According to The Guardian, more than 140 Kenyan athletes have been suspended or banned by the AIU since 2017, among them the women's marathon world record-holder Ruth Chepngetich.
The timing adds a further complication. World Athletics recently awarded Nairobi the 2029 world championships, a decision The Guardian notes is likely to intensify scrutiny of Kenya's anti-doping policies. A case involving the country's reigning world marathon champion will draw attention to how firmly those policies are being enforced.
Shock in Kenya as officials respond
Barnabas Korir, athletics development director at Athletics Kenya and a vice-president of the national Olympic committee, told AFP he was stunned by the news. He described the suspension as a serious setback arriving shortly after the country secured the 2029 championships, and said officials were struggling to understand what is happening with Kenyan athletes given Jepchirchir's standing in the sport.
Her manager, Gianni Demadona, said he learned of the positive test from the AIU three days before the announcement and was both bewildered and shocked. He said the two had worked together for 13 years and that he had regarded her as among the most trustworthy athletes he had represented. He added that he had been mistaken, and that the case had damaged a long and distinguished career at its close.
A career of major titles
Jepchirchir's record includes victories at the New York Marathon in 2021, Boston in 2022, London in 2024 and Sydney in 2026, along with her Olympic triumph in Tokyo. She also holds the world record for the half-marathon. The provisional suspension means she cannot compete while the AIU's investigation proceeds.
Pressure builds on Kenya's anti-doping system
The case arrives during a period of heightened external attention on Kenyan sport. The World Anti-Doping Agency's president, Witold Banka, visited the country this month for three days and said Kenya must pursue a policy of zero tolerance toward doping. He acknowledged the country's reputation as a producer of champions but argued that the standing depends on clean competition.
Banka said Wada and the Anti-Doping Agency of Kenya cannot meet their objectives without cooperation from authorities with the power to act against those who manufacture, smuggle and traffic steroids to athletes. He said the two sides had reached a shared understanding and a clear goal of zero tolerance, and called for joint action and a tougher approach to those damaging the country's image and the reputation of its athletes.
For CYBEV readers, the case is a reminder that anti-doping scrutiny in endurance sport is intensifying rather than easing, and that even the most decorated athletes are subject to out-of-competition testing.
What happens next depends on the AIU's investigation and any subsequent disciplinary process. Watch for confirmation of whether Jepchirchir contests the finding and for any response from World Athletics on the 2029 championships.
