This category is for sites about sports which contain two or more distinct and different activities and in which the results of those activities combine together to determine the winner.
An example of this would be the triathlon because the combined times of the swim, run, and cycling phases determine the winner. Gymnastics would not fit here even though there is an all-around winner because each of the individual events also have winners.
Maui non-profit organization sponsors multi sports activities in Hawaii. Running, biking, swimming, canoe, kayak, surfing, and duathlons. Events include the Kings Trail Triathlon. http://www.mauimultisportsclub.org/
Sponsors of a series of multisport events held throughout Canada with various awards and prizes. Site provides general information, points system, events listing. http://www.multisportscanada.com/
Event organisers of triathlons, duathlons, running, cycling, swimming, adventure racing, training camps, and its triathlon academy. MSPro training links athletic training with business and corporate training. http://www.mspro.co.uk/
FIRM is a multi-sport events organizer acting in the Northeast USA. Provides events, application forms, results, discussion board, and links. http://firm-racing.com/