The "Wisconsin Winter Stack Up" hosted some of the country's fastest cup stackers. Sport stacking is a competition in which competitors stack specially designed cups up and down in set patterns. Speed ...

Start with 12 plastic cups. Use stacks of three, six and three cups to make and dismantle a series of pyramids until you are left again with the original stacks, the 3-6-3 combination. Tyler Ludwig, 8 ...

Their blue tie-dyed t-shirts read “12 cups — 2 hands — 1 goal: stack fast!” And this is exactly what the Easton Elementary Stackers did when they traveled to the Maryland Sport Stacking Championships ...