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mi/ftkm/m
21km
Distance
580m
Elevation D+
2022
Latest Edition
Get Your Predicted Finish Time
Use our predictor tool to estimate your finish time based on your UTMB Index and data from 1 finisher records.
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Racing in United States of America?
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Hotels near Loud Thunder 50 Marathon 20km
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Gear up for your 21km race
Trail Shoes
Trail shoes with good grip are essential. Salomon offers reliable all-round performance, while Decathlon provides great value.
Hydration Vest
Essential for carrying water and nutrition. Salomon vests are popular for good reason, but Decathlon's alternatives do the job at half the price.
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