Kenya’s Olympic 10,000m Finalist Benard Kibet Koech Banned for Four Years Over Blood Doping

NAIROBI, Kenya, Feb 5, 2026—Kenya’s rising distance-running star, Benard Kibet Koech, has been handed a four-year ban after the Athletics Integrity Unit (AIU) concluded that his blood profile showed clear signs of doping, dealing another blow to the country’s storied distance-running reputation.

In a ruling published this week, World Athletics’ Disciplinary Tribunal found that Koech committed an anti-doping rule violation through the use of a prohibited substance or method, based on abnormalities in his Athlete Biological Passport (ABP), despite the absence of a positive drug test. The decision disqualifies all of Koech’s results from June 26, 2024, onwards and bars him from competition until June 2029, with the sanction backdated to the start of his provisional suspension.

Koech, 26, had finished fifth in the men’s 10,000m final at the Paris 2024 Olympic Games, running a personal best in one of the fastest Olympic finals in history. The athlete had also held a world best over the 10-mile distance, marking him as one of Kenya’s most promising track talents.

According to the AIU report, the case hinged on a series of blood samples collected between June and July 2024. The analysis revealed a pattern of abnormally high haemoglobin levels combined with suppressed reticulocytes and elevated OFF-scores—markers experts said are strongly consistent with blood manipulation.

“The abnormalities observed in the athlete’s biological profile are highly likely to be the result of the use of a prohibited substance or method,” the Tribunal stated. “Neither altitude exposure nor iron supplementation can account for the magnitude, timing, and sequence of the abnormalities observed. Blood doping remains the most plausible explanation.”

Koech denied the allegations, attributing the fluctuations to altitude training in Eldoret, iron supplementation, and an alleged COVID-19 infection earlier in the season. The Tribunal, however, dismissed these claims, noting that they were unsupported by medical evidence and scientifically implausible.

The case underscores the growing role of the Athlete Biological Passport, a system that tracks athletes’ blood values over time rather than relying solely on single positive tests. The AIU said the passport remains one of the most effective tools in detecting sophisticated doping methods that may evade traditional testing.

For Kenyan athletics, Koech’s ban adds to a string of high-profile sanctions that continue to fuel concerns over athlete education, medical oversight, and the immense pressures faced by runners chasing international success. Kenya has intensified anti-doping reforms in recent years, including increased testing, athlete education programmes, and collaboration with the Anti-Doping Agency of Kenya (ADAK). Yet, cases involving elite athletes continue to emerge.

Koech has the right to appeal the decision to the Court of Arbitration for Sport (CAS). Until then, one of Kenya’s brightest track talents will remain sidelined, his Olympic breakthrough now overshadowed by a ruling that reinforces the sport’s uncompromising stance on integrity.