Triathlons are races in which the athletes compete in running, swimming and bicycling.
This category contains regional subcategories of sites sponsoring triathlon events.

These can be official websites for specific events, series or race organizers, as well as events calendars and results listings.

Please note that the "Olympics" category link does NOT refer to ''Olympic distance'' events, but refers to the actual Olympic competition held every four years.

This category contains links to triathlon events in Canada.
This category contains links to triathlon events in Guernsey.
This category contains links to triathlon events that are considered Ironman length. There are currently over 20 events in the Ironman Triathlon series of races - each leading up to the Ironman Triathlon World Championship in Kona. IRONMAN = 2.4 mile swim, 112 mile bike, 26.2 mile run.
Please submit Ironman and Half-Ironman events to this category.
This category includes triathlon events located within Japan.
This category includes triathlon events located within The Netherlands.
This category includes triathlon events located within New Zealand.
This category includes triathlon events located within Thailand.
This category includes triathlon events located within Turkey.
This category includes triathlon events located within the United Kingdom.
This category includes triathlon events located within the United States.