Basics
Each stacker begins with the same setup of two stacks of three cups on either side of a stack of six cups. These cups are used to build the first pyramids, which are then broken down to set up the second set, and so on. For effective stacking a competitive stacker must be able to quickly build a pyramid using both hands in conjunction. A competitor who is not ambidextrous will struggle against a balanced stacker.
Formations
There are three formations that are made in the course of a speed stacking run. The first formation is a pyramid of three cups, with one cup atop the other two, then a six-cup pyramid with a row of three added as the base, and a final three cup pyramid. Following the first round, a stacker must make two twin pyramids of six cups each. After reducing the six-cup pyramids, a final ten-cup pyramid is built, with a four-cup base. Finally the ten-cup is reduced down to the original arrangement of cups to finish a run.
Competition
With enough practice, a stacker can take part in competitions to test his stacking skills against those of stackers in the neighboring towns, the nation or even the world. In addition to individual competition where each stacker represents herself, team competitions are held, often pitting students from one school against students of another school, with a balanced lineup of several strong stackers required for success.
Benefits
Competitive stacking isn't just something worth doing because it is fun, the competitions also help develop many positive traits in children who participate. Speed stacking offers a safe outlet for competitive instincts, and participating as part of a team offers the children a sense of camaraderie and a place to make friends. Participation in speed stacking also helps to develop dexterity in the hands of competitors.