Doping in Professional Bicycle Racing
1994
1996
1998
2000
2002
2004
2006
2008
2010
2012
2014
39:45
39:30
39:15
39:00
38:45
38:30
38:15
38:00
37:45
37:30
37:15
37:00
Riders with no doping allegations
Riders with doping allegations