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mi/ftkm/m
41.2km
Distance
390m
Elevation D+
2019
Latest Edition
Get Your Predicted Finish Time
Use our predictor tool to estimate your finish time based on your UTMB Index and data from 17 finisher records.
Open Time Predictor🌍
Racing in Russia?
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Hotels near Mad Fox Ultra Revenge Ultra K40 40km
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Gear up for your 41km 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.
Trekking Poles
Trekking poles save energy on big climbs. Collapsible aluminium poles work well for most runners.
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