The annual world championships for road bicycle racing the 2021 UCI Road World Championships took place between 19 and 26 September 2021 in the Flanders region of Belgium. Insgesamt elf Wettbewerbe von den Profis bis zu den Junioren fanden in Belgien statt (Knokke, Heist, Brügge und Antwerpen):
Individual Time Trial:
19 September Elite men Knokke-Heist Bruges 43.3 km (26.9 mi)
20 September Men U23 30.3 km (18.8 mi)
20 September Elite women 30.3 km (18.8 mi)
21 September Junior women 19.3 km (12.0 mi)
21 September Junior men 22.3 km (13.9 mi)
Mixed team relay
22 September Mixed relay Knokke-Heist Bruges 44.5 km (27.7 mi)
Road race events
24 September Junior women Leuven Leuven 73.7 km (45.8 mi)
24 September Men U23 Antwerp 162.6 km (101.0 mi)
25 September Junior men Leuven 119.4 km (74.2 mi)
25 September Elite women Antwerp 157.7 km (98.0 mi)
26 September Elite men 267.7 km (166.3 mi)