Julien Absalon becomes the first rider to defend the men 's mountain bike title . 36-year-old German Sabine Spitz claims victory in the women 's mountain bike . The first boxing medals were decided on Saturday with Felix Diaz of the Dominican Republic winning his country 's first ever Olympic boxing title after beating Thailand 's Manus Boonjumnong to take the light-welterweight gold . - The Tour de France begins with a prologue stage from Paris to Bordeaux and concludes at Le Mans on Sunday, July 21. Australian Matthew Mitcham denies China clean sweep of diving golds .
Julien Absalon becomes the first rider to defend the men 's mountain bike title . 36-year-old German Sabine Spitz claims victory in the women 's mountain bike . - The Tour de France begins with a prologue stage from Paris to Bordeaux and concludes at Le Mans on Sunday, July 21. Australian Matthew Mitcham denies China clean sweep of diving golds .