The inaugural edition of the Youth Olympic Games opened in Singapore for athletes aged between 14 and 18.

The 2010 Summer Youth Olympics, officially known as the I Summer Youth Olympic Games, and commonly known as Singapore 2010, were the inaugural edition of the Youth Olympic Games (YOG), an Olympic Games-based event for young athletes. Held in Singapore from 14 to 26 August 2010, it was the first International Olympic Committee–sanctioned event held in Southeast Asia. The Games featured about 3,600 athletes aged 14–18 from 204 nations, who competed in 201 events in 26 sports. No official medal tables were published, but the most successful nation was China, followed by Russia; host Singapore did not win any gold medals. Most features that are unique to the YOG, such as mixed-NOCs teams and the Culture and Education Programme (CEP), made their debut at the 2010 Games.

Youth Olympic Games is an international multi-sport event for athletes aged 15 to 18 years old. Organized by the International Olympic Committee (IOC), the Games are held every four years in staggered summer and winter events consistent with the current Olympic Games format, though in reverse order with the Olympic Winter Games held in leap years instead of the Games of the Olympiad. The first summer version was held in Singapore from 14 to 26 August 2010 while the first winter version was held in Austria from 13 to 22 January 2012.