ultramarathon

/ˌʌltrəˈmærəθɑn/
noun
  1. A long-distance running race that is longer than a standard marathon (26.2 miles or 42.195 kilometers), typically 50 kilometers or more.
    • She trained for months to complete her first ultramarathon of 100 kilometers.
    • The ultramarathon took runners through rugged mountain trails.
    • Completing an ultramarathon requires both physical endurance and mental strength.
Antonyms
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