Xterra - off-road triathlon organisation. The Asia-Pacific Championships are held in Kenting, Taiwan in March.
Xterra Japan - annual races held in Nenoue-kogen, Gifu and Marunuma, Gunma.
ITU Cross Triathlon - information on the ITU's version of Xterra
Off-Road Cycling: TnT now has a page dedicated to everything off-road, including off-road triathlon, MTB, gravel, cyclocross, and gran fondo
Calfman Japan - the JTU organises this winter duathlon series. TnT members attend the Kawasaki race.
MSPO Entry - entry for duathlon is through the MSPO website (in Japanese)
JIOWSA - the Japan OWS Association organises a series of aquathon races (only Japanese information)
ÖTILLÖ - website of the original swimrun organisation
Swimrun Japan - Japan Swimrun Association (Facebook)
Kaiyo 2017 - blog post about Japan's inaugral Swimrun race in Kaiyo, Shikoku
SwimRun Shop - online retailer of swimrun gear; they have a calendar of swimrun races around the world
Maranuma 2020 - photo album of Olivier & Youri's race in Gunma