What is the fine-grained topic of the following text: Andy was filmed as he competed in 3 different riding disciplines on 3 back to back weekends chasing the RSD Super Hooligan 2017 championship, road racing chasing the title for Oregon Motorcycle Road Racing Association OMRRA 2017 Formula Ultra Championship, and professional motorcross, plus some stunt riding! Only return the topic.
Andy's participation in various motorcycle racing championships and stunt riding