Cross triathlon

It may also have a high degree of technicality, meaning the number, pitch and sharpness of turns through trees, rocks, logs, streams and other obstacles on the bike trail.

Off-road run courses often follow part of the off-road bike course, and so often require trail running up and down hills or mountain sides, through forests, streams, riverbeds and other natural and occasionally man-made obstacles.

Again, as in off-road biking, predicting a finish time purely based on distance will not be accurate, due to the climbing and trail turns and obstacles preventing a runner from reaching speeds usually achieved on the road.

Additionally, the XTERRA Triathlon is a private off-road series and concluding with a championship each year in Maui.

This multisport, triathlon, adventure racing or other endurance related article is a stub.