Riffle national champion
By VeloNews Interactive
The United States Anti-Doping Agency (USADA) announced last Friday that Chris Del Bosco of Vail, Colorado, tested positive at the USA Cycling Mountain Bike National Championships on September 26 at Mammoth Mountain, California. Del Bosco (Oakley-LenzSport-FoxRacing Shox), a semi-professional downhill ski racer who finished 18th in the NORBA downhill overall in 2003, tested positive for tetrahydrocannabinol (THC), a prohibited substance under World Anti-Doping Agency’s prohibited list. Del Bosco, 22, received a public warning for a first offense. In addition, he is disqualified from his first place finish at the event. Del Bosco, who won the pro men’s downhill event at the inaugural USA Cycling Mountain Bike National Championships in September, forfeits his national title. In Mammoth, Del Bosco qualified second in mountain cross but was eliminated in the first round. Then, during his downhill run, everything clicked and he finished 3.1 seconds ahead of Duncan Riffle (Spy-Fox Shox), who has subsequently been awarded the national title. This is the second time in the last several years that an Americandownhiller has forfeited a big DH win because of a positive for THC, the main intoxicant found in marijuana. Gary Houseman scored an historic World Cup downhill win at Grouse Mountain, British Columbia in 2003 only to have his win stripped later in the year.