Aidan Zingg, the 16-year-old motocross prodigy from Washington, tragically passed away following an incident at Mammoth Mountain MX on June 28, 2025. The exact circumstances of the incident aren’t specified in the reports, but Kris Keefer, a notable figure in the motocross community, posted about a “heavy day at Mammoth Mountain MX,” asking fans to send their prayers and thoughts to the Zingg family.

Aidan had recently signed with Kawasaki’s prestigious Team Green program and was poised to make a significant impact in the highly competitive 250cc class.