Ultrarunning Links
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International Organizations
International Association of Ultrarunners (IAU) International Amateur Athletic Federation Ass'n of International Marathons & Road Races Athletics Canada Atlas Athletic Association (Russia) Association of Canadian Ultrarunners (ACU) Association of Road Racing Statisticians Australian Utrarunners' Association British Athletics German Ultramarathon Association Ultra Netherlands (in Dutch)
Arkansas Ultrarunning Association (AR) Badgerland Striders (WI) Bay Area Ultrarunners (CA) Broadway Ultra Society (NY) The Incline Club (CO) Kansas Ultrarunners' Society (KS) New York Ultrarunning (NYC Area) North Texas Trail Runners (TX) San Diego Ultra Running Friends (CA) Sri Chinmoy Marathon Team (NY) St. Louis Ultrarunning Group (MO) Trail Animal Running Club (MA) Virginia Happy Trails Running Club (VA)
International Clubs
Ontario Ultra Series (CAN) Sydney Striders (AUS)
Marathon & Beyond Podismo (Italian) Trail Runner Ultrarunning Magazine
Resources
UltraRunR Resource Ultrarunner.net Run100s.com (Stan Jensen) The Ultramarathon Store
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