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
Mixed curling the Tim Hortons Brier are single-sex events or are divided into single-sex divisions. In mixed doubles curling, two players, one woman and one man, compose each team. The idea was developed by Curling Canada's Warren Hansen in 2001 to be one of four discipline variations for the introduction of the Continental Cup of Curling. The first World Mixed Doubles Championship took place in 2008. Since its inception, Switzerland has won six of the first ten titles. Russia and Hungary have won their first world curling titles in the mixed doubles championship, and New Zealand, France, Austria, and the Czech Republic