irunfar is your home for ultramarathon training info, trail running gear reviews, as well as insight into, information about, and inspiration running far!

trail runner covers the places, events, gear, fitness, and training for all things related to trail running.

the largest online directory of races and clubs

welcome to relentless forward commotion trail running - ultramarathon - exercise science & more. expert advice from an experienced coach & ultrarunner, designed for beginners to 100 milers and beyond. helping you balance training with

the online home of runner's world magazine. running news, training advice, inspiring stories, running shoe reviews, gear tips, and more.

serving a loyal market of long-distance runners since 1981, ultrarunning magazine has long been established as “the voice of the sport”. containing comprehensive and informative articles about all aspects of the sport of ultramarathoning, ultrarunning is a must-read for all who participate in the sport.

a comprehensive set of tools designed to meet the unique needs of event organizers, timers, and fundraising coordinators everywhere.

finishers c’est le calendrier de courses le plus complet et le plus à jour. identifie ton prochain challenge et réserve ton dossard en quelques clics ! 10 km, semi-marathon, marathons, trails, ultra-trails, urban trails… à toi de jouer !

utmb® world series is the world’s ultimate trail running circuit that allows all runners to experience the utmb adventure through the best, leading international events.

runguides | find running events, running clubs, and more!