Vancouver will host the 2015 Deaflympics. There will be 27 events including cross-country skiing, curling, ice hockey and snowboarding. To compete, you have to have a deafness of 55 decibels or greater. Although the Winter and Summer Deaflympics happen every four years, like the hearing Olympics, they take place in odd-numbered years. The next The next gathering of athletes for the Winter Deaflympics will be next year in Slovakia.