This sport involves teams of two people, where one member carries the other on their shoulders. The rider must balance a glass on a tray they are holding upright, as the carrying member races to the finish line without letting the glass fall. The rules state that only one hand can be used to hold the glass and tray upright, while the other hand must only be used to hold the carrier. Whichever team crosses the finish line first while keeping the glass upright and balanced wins.