Gordons Gymnastics Club in Mowbray joined other clubs in attempting to break the Guinness World Record for the most people speed stacking at multiple locations in one day, on Thursday November 8. Sport stacking, also known as cup stacking or speed stacking, is an individual and team sport that involves stacking nine or 12 specially designed cups in pre-determined sequences as fast as you can. The current record stands at 578 704 cups stacked.