The driver that makes a descent in the circuit will slip on his back on a sled with front feet. Different from bobsleigh and skeleton the start is made with the pilot already placed in the sled. Runners push the sled using gloves with nails on the ice surface for extra acceleration before hovering aerodynamic position. Runners run the luge with legs or shoulders. In Winter Olympics there are four races in two days. The athlete with the lowest combined time wins the event.