Key events can be any memorable event, for example an impressive victory but also a major crash, bold solo or anything that makes for sporting memories.
In stage 15 from Grenoble to Les-Deux-Alpes of the Tour de France 1998, Marco Pantani attacked at 6 kilometre from the top of the Galibier. He arrived solo in Les-Deux-Alpes with almost 2 minutes on Rodolfo Massi. Jan Ullrich lost 9 minutes and the yellow jersey.