Gameplay
International competitive games are ten ends, so most of the national championships that send a representative to the World Championships or Olympics also play ten ends. However, there is a movement on the World Curling Tour to make the games only eight ends. Most tournaments on that tour are like the vast majority of recreation games, and are eight ends. An end consists of each player from both teams throwing two stones down the sheet with the players on each side alternating shots, for a total of 16 stones. A game may be conceded if considered unwinnable. If the teams are tied play continues for as many ends as may be required to break the tie. The winner is the team with the highest score after all ends have been completed (see Scoring below).
In international competition, each side is given 73 minutes to complete all of its throws. Each team is also allowed two 60-second timeouts per 10-end game. If extra ends are required, each team is allowed 10 minutes of playing time to complete its throws and one added 60-second timeout for each extra end.
Read more about this topic: Curling