One-day races are cycling events that take place over a single day, featuring a variety of terrains and distances. These races often include challenging routes, such as hills and cobblestones, and can attract both professional and amateur cyclists. Popular examples of one-day races include the Tour of Flanders and Paris-Roubaix. These races are typically part of the UCI World Tour and are known for their intense competition and strategic team dynamics. Cyclists must manage their energy and tactics carefully, as the race can be physically demanding and unpredictable, often influenced by weather conditions and course challenges.