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 ...

Watch intense cup stacking action as players race to build perfect stacks. #FunChallenge #Skills #Competition ...

Could you stack 12 cups in under two seconds? If the answer is "no" then the European Sport Stacking Championships are probably not for you. But for five people from Northern Ireland - including three ...

Editor’s note: This segment was rebroadcast on Sept. 30, 2025. Click here for that audio. In the early 2000s, thousands of U.S. schools had their students race the clock to stack cups in gym class.