https://www.aljazeera.com/sports/2026/10/23/cas-clears-japans-olympic-silver-medallist-ikeda-of-doping-overturns-ban The AIU's missteps in this case cost Tokyo Olympics and Oregon World Championships 20 km race walk silver medalist Koki Ikeda , a Toyo University graduate who competes for the Asahi Kasei corporate team, the chance to represent Japan at a home soil World Championships last year. It is almost unheard of for an athlete to successfully fight a biological passport suspension as Ikeda did, making this a highly significant case. The CAS' press release about its decision stated: "The Panel stressed that the Athlete did not merely assert his position on the ABP abnormalities but adduced very extensive evidence in support of his explanations. In this highly complex case, the evidence brought during the CAS proceedings was far more abundant and specific than during the first instance proceedings with the WA Disciplinary Tribunal, implying the CAS Panel had further ...
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