Endure Weekly
The Iconic Ultras Race Roster

North America's iconic ultras.
And one in Chamonix.

Field briefings, course, qualifying paths, lottery odds, gear strategy, pacing. Practical, not promotional. New race added every other week.

  1. № 01 Jun

    Western States 100

    Olympic Valley → Auburn, CA · USA

    100 mi · 18,000 ft · 30h cutoff · Last Sat. June
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  2. № 02 Aug

    Ultra-Trail du Mont-Blanc

    Chamonix · France / Italy / Switzerland

    174 km · 9,700 m · 45.5h cutoff · Late Aug.
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  3. № 03 Aug

    Leadville Trail 100

    Leadville, CO · USA

    99.7 mi · 15,500 ft · 30h cutoff · Mid-Aug.
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  4. № 04 Jul

    Hardrock 100

    Silverton, CO · USA

    100.5 mi · 33,000 ft · 48h cutoff · Mid-July
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  5. № 05 May

    Cocodona 250

    Black Canyon → Flagstaff, AZ · USA

    253 mi · 38,900 ft · 125h cutoff · Early May
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  6. № 06 Sep

    Wasatch Front 100

    Kaysville → Heber City, UT · USA

    100 mi · 24,000 ft · 36h cutoff · Early Sept.
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  7. № 07 Aug

    Bigfoot 200

    Marble Mountain, WA · USA

    207 mi · 41,000 ft · 192h cutoff · Mid-Aug.
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  8. № 08 Jun

    Bighorn Trail 100

    Dayton, WY · USA

    100 mi · 18,000 ft · 34h cutoff · Mid-June
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  9. № 09 Sep

    The Bear 100

    Logan, UT → Fish Haven, ID · USA

    100 mi · 22,000 ft · 36h cutoff · Late Sept.
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  10. № 10 Sep

    Run Rabbit Run 100

    Steamboat Springs, CO · USA

    100 mi · 21,000 ft · 36h cutoff · Mid-Sept.
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  11. № 11 Aug

    Cascade Crest Classic 100

    Easton, WA · USA

    100 mi · 23,000 ft · 32h cutoff · Late Aug.
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  12. № 12 Feb

    Black Canyon Ultras

    Black Canyon City, AZ · USA

    60K + 100K · 6,500 ft · 17h cutoff · Early Feb.
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  13. № 13 Sep

    Tahoe 200

    Lake Tahoe, CA/NV · USA

    205 mi · 41,000 ft · 100h cutoff · Mid-Sept.
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  14. № 14 Oct

    Moab 240

    Moab, UT · USA

    240 mi · 29,000 ft · 117h cutoff · Mid-Oct.
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  15. № 15 Jul

    Vermont 100

    West Windsor, VT · USA

    100 mi · 14,000 ft · 30h cutoff · Mid-July
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  16. № 16 May

    Massanutten Mtn Trails 100

    Shenandoah Valley, VA · USA

    103 mi · 18,000 ft · 36h cutoff · Mid-May
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  17. № 17 Aug

    Eastern States 100

    Tiadaghton State Forest, PA · USA

    102 mi · 20,000 ft · 36h cutoff · Early Aug.
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  18. № 18 May

    Cruel Jewel 100

    North Georgia · USA

    106 mi · 33,000 ft · 48h cutoff · Mid-May
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  19. № 19 Sep

    Spartathlon

    Athens → Sparta · Greece

    246 km · 3,000 m · 36h cutoff · Late Sept.
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  20. № 20 Apr

    Marathon des Sables

    Sahara · Morocco

    ~250 km / 6 stages · ~3,000 m · staged cutoff · Early April
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  21. № 21 Sep

    Tor des Géants

    Aosta Valley · Italy

    330 km · 24,000 m · 150h cutoff · Mid-Sept.
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Ultra races by state

Looking closer to home? Our state guides list the best-known races by distance: ultra races in California, Utah ultra marathons, Colorado ultras, Arizona ultras and Washington ultras.