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.

MUKWONAGO, Wis. - In the Nicloy's family home in Mukwonago, it's hard to miss the sound of nine-year-old Liam Nicloy speed stacking. "Usually, I wake up and then play a little bit in the morning, and ...

Cup stacking sounds like it may be a game engaged in by a group of college age people at a bar, but that's not who practice the sport. The game or sport known as speed stacking has been around since ...