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.

Fifth-grader Luke Mueller high fives Utah's number one sport stacker, Ethan Sumsion, after they raced during a sport stacking event at South Weber Elementary school on Thursday, November 13, 2014.

Most sports are actually absurd. Golf involves hitting a tiny ball into a hole hundreds of yards away. Soccer is based on the idea of what if we didn't use our hands. Speed stacking — if you really ...

FAIRFIELD, Ohio -- To most people, a plastic cup is just a vessel from which to drink, but for Robert Weatherington, plastic cups mean competition. The 17-year-old from Fairfield is part of the U.S.