Wheelchair curling the rock handle, allowing the rock to be pushed while applying correct rotation. Stones delivered between the house and the near hogline must be placed within 18 inches either side of the centre line and must be released prior to reaching the near hogline. National and international competitions are played under rules devised by the World Curling Federation. These rules mandate that teams be of mixed gender, and that games be eight ends in duration. Time limits of 68 minutes for each team with one 60 second time out will be enforced by time clocks. Eligibility is limited to people
Curling have too much weight, but require sweeping to prevent curling into a guard. The team must decide which is better: getting by the guard but traveling too far, or hitting the guard. Much of the yelling that goes on during a curling game is the skip calling the "line" of the shot and the sweepers calling the "weight". The skip evaluates the path of the stone and calls to the sweepers to sweep as necessary to maintain the intended track. The sweepers themselves are responsible for judging the weight of the stone, ensuring the length of travel is correct and