Race walker Stephen Ndangiri Kihu has been provisionally suspended after an out-of-competition doping test detected the presence of a prohibited substance, just days after his historic silver medal-winning performance at the 2026 Commonwealth Games in Glasgow.Download our Mozzart Sport app for more newsThe Anti-Doping Agency of Kenya (ADAK) listed Ndangiri among provisionally suspended athletes on 5 August, citing an alleged anti-doping rule violation under category S2 of the World Anti-Doping Code, which covers peptide hormones and other related substances.##NAJAVA_MECA_9883848##In its notice, ADAK stated that the case involves the “Presence of Prohibited Substance S2. Peptide Hormones, Growth Factors, Related Substances and Mimetics/erythropoietin (EPO).”Ndangiri was the only athlete named in ADAK’s latest list of provisional suspensions, adding to the growing number of Kenyan athletes who have faced anti-doping sanctions in recent years through ADAK and the Athletics Integrity Unit (AIU).According to Nation, the sample that triggered the provisional suspension was collected on 30 June, during an out-of-competition test while Ndangiri was in Team Kenya’s residential training camp at the Moi International Sports Centre, Kasarani, as part of preparations for the Commonwealth Games.Kenyan youngster wins gold in Championship Record time at WU20sA provisional suspension does not constitute a final determination of guilt. Ndangiri has the right to challenge the findings and appeal the decision through the established anti-doping process.Should the athlete cooperate with investigators, including by helping identify the source of the prohibited substance, any eventual sanction could be reduced in accordance with the World Anti-Doping Code.Kenya's dream of hosting 2029 World Championships faces major threat as new bidder joins raceKenyan athletes found guilty of anti-doping rule violations have in recent years received severe sanctions from the AIU, with bans typically ranging from two to four years. However, in cases involving aggravating circumstances, such as providing false documentation or attempting to mislead investigators, suspensions have extended to between five and 10 years.The suspension comes just days after the 20-year-old enjoyed the biggest achievement of his career at the Commonwealth Games in Glasgow.Silver for Odira as Ndangiri strides into Commonwealth walk race historyOn 31 July, Ndangiri claimed a historic silver medal in the men’s 10,000m race walk after clocking a national record time of 38:46.57. He finished just 1.06 seconds behind Australia’s Isaac Beacroft, who won gold in 38:45.51, as Ndangiri became one of Kenya’s standout performers at the Games.