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mi/ftkm/m
16.87km
Distance
886m
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 39 finisher records.
Open Time Predictor🌍
Racing in Australia?
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Hotels near Hounslow Classic Hounslow 20km
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Gear up for your 17km 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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