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.

It's an unusual and popular sport called stacking. Participants beat by seeing how fast they can stack cups and a world record holders get this a Maryland 10 year old. 11. News education reporter Tim ...

It's an addiction, they say. The speedy cup stackers at Oregon Episcopal School can't stop themselves. Time and again, they stack plastic cups in towers of three or six or 10 or 12 as fast as their ...

The sport involves stacking nine to 12 specially designed cups in predetermined sequences as quickly as possible.