On August 31, 2026 the Court of Arbitration for Sport (CAS, Lausanne, Switzerland) delivered an arbitral award related to violation under cl. 4.1 (Presence of a Prohibited Substance or its Metabolites or Markers in an Athlete’s Sample) of the All-Russian Anti-Doping Rules by athlete Lysenin Nikita (Nordic Combined) whose sample returned an Adverse Analytical Finding for tuaminoheptane (class S6b of 2025 WADA Prohibited List).
The Court of Arbitration for Sport set aside the decision issued on 28 May 2025 by the Disciplinary Anti-Doping Committee of RUSADA to apply 6-month period of ineligibility and sanctioned the athlete with a period of ineligibility of 15 months starting as from August 31, 2026, with credit for the served period of provisional suspension and ineligibility, namely from March 3, 2025 till September 2, 2025.