On a scorching afternoon in Tokyo, a pair of 13-year-old skateboarders turned the world's biggest sporting event into their own personal playground. They darted around the park, hopped over obstacles and grinded down rails in a show of skill and youthful exuberance.

Many sports are children's games at their cores after all, you just don't always see kids rising up quite like this on the world stage.

Thirteen-year-old Momiji Nishiya gave host nation Japan more to cheer about in the Olympic skateboarding competition, out-dueling Brazilian Rayssa Leal, also 13, and Japan’s Funa Nakayama, the elder stateswoman at 16, for the women’s street gold medal Monday afternoon at Ariake Urban Sports Park.