Demands of Endurance Cycling Races

Endurance cycling encompasses a range of race formats, including multi- and single-day road races ( Sanders and van Erp, 2020 ), time trials ( Lucía et al. , 2001 ), Olympic cross-country (XCO) mountain biking ( Impellizzeri and Marcora, 2007 ), cyclo-cross ( Bossi et al. , 2018 ), and gravel events ( Smith et al. , 2025 ). Multi-day road races typically refer to the 3-week Grand Tours: Giro d'Italia, Tour de France and Vuelta a España. However, there are also stage races lasting 1 week or less, such as Paris–Nice, Tirreno–Adriatico, and Tour de Romandie. Single-day road races such as Milano–Sanremo, Paris–Roubaix, and Liège–Bastogne–Liège typically cover 250 to 300 km, usually over hilly terrain with steep climbs and, in some events, cobbled sectors. Time trials generally cover distances of 10 to 50 km and require sustained, high-intensity efforts, either individually or as part of a team, over flat or uphill terrain. XCO races last between 80 and 100 minutes and consist of repeated trail laps of around 4 to 6 km, with steep climbs, technical terrain, and natural obstacles. Cyclo-cross races last about 60 minutes on a 2.5- to 3.5-km circuit featuring steep banks, man-made hurdles, sand, mud, and/or snow, often forcing cyclists to dismount and run while carrying their bikes. Gravel races combine the extended duration and long climbs of road cycling with the technical demands of unpaved surfaces, requiring a mix of endurance and off-road handling skills.