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Kayapa, Philippines
H1 is the first 100-mile trail race in the Philippines. It belongs to an exclusive club of 100-mile races worldwide that have a total elevation gain of more than 10,000 meters. The ITRA-certified race has less than 10% of the route made up of concrete roads, and the rest, of single track trails, dirt/gravel paths, dry stream beds, grasslands, etc.
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