Information: - The Leadville Trail 100 MTB is the second oldest of the growing number of marathon mountain bike races held in the United States, the first being the Wilderness 101 in Central PA. The Leadville Trail 100 MTB was first run in 1994 and has become one of the best marketed, attended and known marathon events in mountain bike racing. - Oscar Pereiro Sio (born August 3, 1977) is a former Spanish professional road bicycle racer. Pereiro won the 2006 Tour de France, after the original winner Floyd Landis was disqualified for failing a doping test after his stage 17 victory. Pereiro is a former member of Porta da Ravessa (2000 to 2001), Phonak Hearing Systems (2002 to 2005), (2006 to 2009), and the cycling team (2010). After retiring from cycling in 2010, Pereiro joined his local part-time football club Coruxo FC of the Segunda Division B. - France, officially the French Republic, is a country with territory in western Europe and several overseas regions and territories. The European, or metropolitan, area of France extends from the Mediterranean Sea to the English Channel and the North Sea, and from the Rhine to the Atlantic Ocean. Overseas France include French Guiana on the South American continent and several island territories in the Atlantic, Pacific and Indian oceans. France spans and had a total population of almost 67 million people as of January 2017. It is a unitary semi-presidential republic with the capital in Paris, the country's largest city and main cultural and commercial centre. Other major urban centres include Marseille, Lyon, Lille, Nice, Toulouse and Bordeaux. - Marathon mountain bike races, often referred to as cross country marathon (XCM), are a very demanding form of mountain bike races covering at least usually in mountainous terrain. Events held in Europe are typically just a little longer than the average cross country mountain bike race. Marathon events in the USA and Canada are typically longer than and are very different from cross country races. - Floyd Landis (born October 14, 1975) is an American former professional road racing cyclist. Landis at first appeared to be the winner of the 2006 Tour de France, before testing positive for performance-enhancing drugs. The competition was ultimately won by Oscar Pereiro. Landis was an all-around rider, with special skills in climbing, time-trialing, and descending. Landis turned professional in 1999 with the Mercury Cycling Team. He joined the U.S. Postal Service team in 2002, and moved to the Phonak Hearing Systems team in 2005. In January 2010, a French judge issued a national arrest warrant for Landis on computer hacking charges related to the 2006 doping allegations. - Lance Edward Armstrong (born Lance Edward Gunderson, September 18, 1971) is an American former professional road racing cyclist. Armstrong had won the Tour de France a record seven consecutive times from 1999 to 2005, before he was banned for life and all his results going back to August 1998 were voided, as a result of long-term doping offenses. - The Tour de France is an annual multiple stage bicycle race primarily held in France, while also occasionally making passes through nearby countries. The race was first organized in 1903 to increase sales for the newspaper "L'Auto"; which is currently run by the Amaury Sport Organisation. The race has been held annually since its first edition in 1903 except when it was stopped for the two World Wars. As the Tour gained prominence and popularity the race was lengthened and its reach began to extend around the globe. Participation expanded from a primarily French field, as riders from all over the world began to participate in the race each year. The Tour is a UCI World Tour event, which means that the teams that compete in the race are mostly UCI WorldTeams, with the exception of the teams that the organizers invite. - David Wiens is an American former professional cross-country mountain bike racer . He is known for his six consecutive wins in the Leadville Trail 100 MTB mountain bike race including defeating Tour de France riders Floyd Landis and Lance Armstrong . Wiens , a 2000 inductee to the Mountain Bike Hall of Fame , won the Leadville Trail 100 every year from 2003 to 2008 . In 2007 , he broke the 7 hour mark for the first time at 6:58:46 while holding off Floyd Landis by just under 2 minutes . In 2008 , Wiens won again beating 7 - time Tour de France winner Lance Armstrong by just under 2 minutes and setting a new course record of 6:45:45 . In 2009 , Wiens finished second behind Armstrong in Leadville with a time of 6:57:02 . In 2006 , Wiens founded Gunnison Trails , a non-profit organization dedicated to enhancing singletrack bike trails on public lands adjacent to Gunnison , Colorado . In June , 2012 , Dave Weins became the inaugural Director of the Mountain Sports Program at WSCU ( Western State Colorado University ) in Gunnison . Wiens is married to Susan DeMattei , a former professional mountain bike racer and Olympic bronze medal winner . Given the information above, choose from the list below the object entity that exhibits the relation 'occupation' with the subject 'david wiens'. Choices: - bicycle racer - canada - commercial - computer - judge - mountain - sales
The answer to this question is:
bicycle racer