Heraskevych argues the decision is disproportionate and unsupported by technical or safety violations.
He missed the first two runs of the men's skeleton competition but hopes to compete in the final two runs Friday pending the CAS's decision.
Heraskevych Appeals Olympic Helmet Disqualification
Ukrainian skeleton athlete Vladyslav Heraskevych has filed an urgent appeal with the Court of Arbitration for Sport (CAS) following his disqualification from the Winter Olympics for wearing a helmet honoring fellow athletes killed during Russia's invasion.