Best I could find

The term "sport" may be extended to encompass all competitive activities, regardless of the level of physical activity. Both games of skill and motor sport exhibit many of the characteristics of physical sports, such as skill, sportsmanship, and at the highest levels, even professional sponsorship associated with physical sports. Air sports, billiards, bridge, chess, motorcycle racing, and powerboating are all recognized as sports by the International Olympic Committee with their world governing bodies represented in the Association of the IOC Recognised International Sports Federations.
So Chess is a sport too (but when I played in the RAF, they didn't recognise it as such)

Posted By: Cannydc, May 1, 15:48:59