Get Your Predicted Finish Time
Use our predictor tool to estimate your finish time based on your UTMB Index and data from 32 finisher records.
Open Time PredictorRacing in South Korea?
Hotels near Trail Run Jeju 100km
Book accommodation near the start
Flights to South Korea
Compare deals from major airlines
This free tool is supported by affiliate links
Gear up for your 105km race
Trail Shoes
Hoka's cushioning pays off in the final hours of an ultra. Budget option: Decathlon's Evadict range offers solid performance for first-timers.
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.
Headlamp
Check if your race goes into darkness. A good headlamp (200+ lumens) with reliable battery life is worth having ready.
This free tool is supported by affiliate links