Kenny’s suspension began on October 13, 2025. According to the FEI’s public anti-doping database, Kenny tested positive for a stimulant falling under Category S6 of the World Anti-Doping Agency (WADA) list. The FEI stated that the investigation is being handled by the International Testing Agency (ITA), which manages the anti-doping program for human athletes on behalf of the FEI.

The rider emphasized that he never intended to gain an unfair advantage, explaining that his medication is part of a legitimate, doctor-supervised treatment plan for ADHD.