Two Road-Race Stars Face Doping Allegations — image accompanying Canadian Running's report. Image accompanying Canadian Running’s report; reduced and presented for news commentary with the attributed report. View the complete source report.
Ethiopia's Tiruye Mesfin received a three-year ban by the AIU for abnormalities in her Athlete Biological Passport. Mesfin admitted to using a prohibited substance, reducing her ban from four years. Results from June 2025 onward have been disqualified.
Uganda's Harbert Kibet faces a provisional suspension after triamcinolone acetonide and exogenous steroids were detected. The investigation is ongoing, and a formal ban is pending. Kibet's 2026 season began with a world-leading 10K time. Read more culture coverage.
The AIU introduced the Athlete Biological Passport to detect doping by monitoring biological markers. Mesfin's case involved blood doping, while Kibet's involved steroids. Both athletes' suspensions highlight ongoing issues in road racing. Related: Dauwalter and Bouillard Withdraw from 2026 UTMB.
This original Runner World brief is based on reporting from Canadian Running. Visit the source for its complete reporting, context and any later corrections.
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What should runners know about Two Road-Race Stars Face Doping Allegations?
Ethiopia's Mesfin and Uganda's Kibet suspended by AIU Ethiopia's Tiruye Mesfin received a three-year ban by the AIU for abnormalities in her Athlete Biological Passport. Mesfin admitted to using a prohibited substance, reducing her ban from four years. Results from June 2025 onward have been disqualified.
When did Runner World publish this culture brief?
Runner World published this brief on September 4, 2026. The underlying Canadian Running report was dated September 4, 2026.
Where can readers find the complete original report?
This summary is based on reporting from Canadian Running. The attributed source link in the article leads to the publisher’s complete report.
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