Watch intense cup stacking action as players race to build perfect stacks. #FunChallenge #Skills #Competition Federal court hands Trump mass deportation win Giannis Antetokounmpo reportedly traded to ...

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.

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 ...