Sport stacking (also known as cup stacking or speed stacking) is an individual and team sport that involves stacking plastic cups in specific sequences in as little time as possible. The cups are specially designed to allow for faster times.
In this Vox video, The incredible sport of cup stacking, explained, Phil Edwards learns the basics of stacking with Melissa Gomez, Zhewei Wu, and Mark Sykes to find out what drives a stacker to stack, and how they try to improve their times.
Participants of sport stacking stack cups in pre-determined sequences, by aligning the inside left lateral adjunct of each cup with that of the next.
Sequences are usually pyramids of 3, 6, or 10 cups. Players compete against the clock or another player.