Gogara - Games of the Greatest All-Round Athletes 
A multi-event sport comprised of 30 performance events and 19 competition events. There are ten events that people can submit results for and get an unofficial world ranking.
http://www.gogara.com/STREND Fitness Challenge 
Multi-fitness event consisting of six separate disciplines or exercises. The first five test upper body muscular STRength, the sixth tests cardiovascular ENDurance, hence the name STREND.
http://www.strend.com/
Sugarbush Triathlon 
A unique four-event triathlon with running, paddling, cycling, and cross-country skiing. Held in Mad Valley, Vermont, USA.
http://www.vtliving.com/events/sugarbushtriathlon/
Multisport Calendar for New Zealand 
Listing multisport endurance events, triathlon, duathlon, running, mountain biking, cycling, kayaking in Canterbury, Westland, Nelson, Marlbourough, Central Otago.
http://mscalendar.50webs.com/