Finger Lakes Fifties: http://fl50sultraz.blogspot.com/

Mind The Ducks 12 Hour: http://mtd12hour.org/

Highland Forest 1-2-3 Trail Race: http://www.syracusechargers.org/highland123/

Green Lakes Endurance Runs: http://www.gleruns.org/

Sehgahunda Trail Marathon: http://www.yellowjacketracing.com/sehgahunda-trail-marathon-relay/

Beast of Burden: http://winter100.com/

---

Stan Jensen's Run 100s site: http://www.run100s.com/

New York Ultra Running: http://www.newyorkultrarunning.org/

UltraRunning Online: http://www.ultrarunning.com/

Trail Runner Trophy Series Races: http://www.trailrunnermag.com/racecalendar.php?ts=yes

Kevin Sayers Ultra Running Resource Page: http://www.ultrunr.com/

American Ultra Running Association: http://www.americanultra.org/