Ringo

Ringo is a sport played mainly in Poland. It is played on a rectangular court with a raised net, similar to volleyball or badminton. Individual players or teams stand on opposite sides of the net and throw a small rubber ring back and forth, without letting it hit the ground.

It was invented by Wlodzimierz Strzyzewski, a Polish fencer and journalist, who demonstrated the game while he was covering the 1968 Summer Olympics in Mexico City.