The annual Missouri / Kansas Spin Top Competition occured with in the Missouri / Kansas State Yo Yo contest (United Yo Yo – UYY) in St. Louis Missouri (UYY alternates between St. Louis and Kansas City each year).
Anyway. Below is a link to the rules, it is a best throw format like last year (2018). Click here to check out the format.
Venue details on the website if you are interested.