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mi/ftkm/m
42km
Distance
1,673m
Elevation D+
2025
Latest Edition
Get Your Predicted Finish Time
Use our predictor tool to estimate your finish time based on your UTMB Index and data from 7 finisher records.
Open Time Predictor🌍
Racing in Hong Kong, China?
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Hotels near Sowers Action Challenging 12 Hours Sowers Challenging 12 Hours Team 40km
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Flights to Hong Kong, China
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Gear up for your 42km 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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