Hernando and Chaverot Ultra Champions. Spain, Czech Republic and Japan take the medals - The International Skyrunning Federation
2020 SKYRUNNING WORLD CHAMPIONSHIPS: BUFF MOUNTAIN FESTIVAL FROM JULY 9 TO JULY 11, 2021 - TrailrunningSpain.com
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Buff Epic Trail - Wikipedia
Buff Epic Trail 2016 (KV-21k-42k-105k): Campeonato del Mundo Skyrunning en P.N. Aigüestortes. Programa, trazados y favoritos. - CARRERAS DE MONTAÑA, POR MAYAYO
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Buff Epic Trail - A Skyrunning Adventure Through The Spanish Pyrenees | Trail & Kale
Inscripciones abiertas para la Buff® Epic Trail Aigüestortes 2016