William Bon Mardion

William Bon Mardion (born 4 October 1983) is a French ski mountaineer.

Bon Mardion was born and lives in Arêches where he is member of the Club Multisports Arêches-Beaufort. He started ski mountaineering in 1998. He competed first as a member of the "Espoirs" team at the Pierra Menta race in the same year and has been member of the national team since 2006.

Selected results

 * 2005:
 * 10th, European Championship single race
 * 2007:
 * 2nd, European Championship team race (together with Alexandre Pellicier)
 * 2nd, European Championship combination ranking
 * 3rd, European Championship single race
 * 2008:
 * 4th, World Championship team race (together with Grégory Gachet)
 * 2010:
 * 3rd, World Championship relay race (together with Didier Blanc, Florent Perrier and Grégory Gachet)
 * 4th, World Championship team race (together with Alexandre Pellicier)
 * 8th, World Championship single race
 * 9th, World Championship combination ranking
 * 2011:
 * 2nd, World Championship single race
 * 2nd, World Championship vertical, combined ranking
 * 3rd, World Championship vertical race
 * 3rd, World Championship team race (together with Didier Blanc)
 * 3rd, World Championship relay, together with Didier Blanc, Xavier Gachet and Yannick Buffet
 * 2012:
 * 1st, European Championship single
 * 2nd, European Championship relay, together with Alexis Sévennec-Verdier, Valentin Favre and Yannick Buffet
 * 5th, World Championship vertical, combined ranking
 * 6th, European Championship vertical race
 * 7th, European Championship sprint

Pierra Menta

 * 2007: 4th, together with Vincent Meilleur
 * 2008: 4th, together with Grégory Gachet
 * 2009: 7th, together with Nicolas Bonnet
 * 2010: 2nd, together with Florent Perrier
 * 2011: 4th, together with Martin Anthamatten
 * 2012: 3rd, together with Pietro Lanfranchi
 * 2013: 1st, together with Mathéo Jacquemoud

Trofeo Mezzalama

 * 2011: 1st, together with Kílian Jornet Burgada and Didier Blanc