More than a dozen men have a chance to capture the gold medal when cycling starts at the Tokyo Games this weekend.

(Photo by Bryn Lennon/Getty Images)(CNN) - Defending champion Geraint Thomas made up nearly half a minute on leader Julian Alaphilippe in a gripping 15th stage of the Tour de France in the Pyrenees on Sunday. He now trails Alaphilippe by one minute, 35 seconds. READ: Frenchmen shine in 14th stage"That's what will lose him the Tour de France, that inability to gauge his effort over the three weeks," said Wiggins. "If he wins this Tour, he's going to have to get a lot smarter." In Saturday's grueling 14th stage between Tarbes and Tourmalet, Thomas lost 30 seconds on Alaphilippe.