He competed in the JGTC until the 2000 season and now works as team manager for the Super GT division of the Toyota Team TOM'S and also runs a racing school at Fuji Speedway. In 1998, Sekiya also appeared in a TV commercial in Japan driving a JZA80 Supra promoting its handling package. Sekiya retired from professional motorsports in October 2000 and is now involved in team management.
He participated in the JGTC until the 2000 season and now serves as team manager for the Super GT division of the Toyota Team TOM'S, while also operating a racing academy at Fuji Speedway. In 1998, Sekiya also appeared in a TV commercial in Japan driving a JZA80 Supra to showcase its handling capabilities. Sekiya stopped competing professionally in motorsports in October 2000 and is now involved in team management.