It's a race against time.
A test of coordination.
It can be a solo trial, or a team effort.
It's... sport stacking.
From around Colorado, roughly 250 competitors converged on the Olympic Training Complex in Colorado Springs on Saturday to see how fast they truly are at what's often called "cup stacking." Stacking is a time trial to see who can build triangles and patterns with plastic cups and then re-stack the cups the fastest.
The World Sport Stacking Association, led by Executive Director Bob Fox, held one of six regional contests at the Olympic complex. The regional champions from across the country will move on to a national championship later this month, and the national winners will compete in an international contest.
"It's a track meet for your hands at lightning speed," Fox said. "It has all the elements of any other sport. It's just not a traditional sport. It's a non-traditional sport."
The regional competition had seven separate events, including three individual competitions, two doubles matches, and two team relays.
The majority of "stackers," as Fox calls the competitors, are between six and 13 years old, but there are age brackets for those of all ages, including seniors over 65.
Fox, along with his wife Jill, have been targeting students and schools across the country. They say that stacking is a way for kids to build coordination and have fun at the same time. And the pasttime has so far spread to more than 30 countries across the globe, Fox said.