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Built on bad decisions in Boulder, CO.

Worlds End Ultramarathon

2 Race Events100K, 50K

Iron Forged Runners

Forksville, Pennsylvania, United States

Course map for Worlds End Ultramarathon 100K

Qualifier Req

Worlds End Ultramarathon 100K

Jun 5, 2027

100KCrewPacers

Course map for Worlds End Ultramarathon 50K

Worlds End Ultramarathon 50K

Jun 5, 2027

50K