UCI CYCLING REGULATIONS  UCI ProSeries men elite events  Continental circuits  Elite women's world circuit  Junior men's and women's world circuits  2.6.008 Stage distances  (text modified on 1.01.05, 1.01.06; 1.01.08; 1.01.09; 1.07.09; 1.01.16; 1.01.17; 1.01.18).  The riders must complete the entire distance of each stage to be included in the  classification and to be allowed to continue in the event.  * The distance and the day of the prologue are not taken into consideration for calculating the  average daily distance.  E170421  ROAD RACES  58  Calendar  Max. average  daily distance *  Max. distance  per stage  Max. distance  per ITT stage  Max. distance  per TTT stage  UCI WorldTour  180 km  240 km  60 km  60 km  Men Elite and Under 23  (continental circuits,  UCI ProSeries, 1 and 2) 180 km  240 km  60 km  60 km  Men Under 23  (continental circuits,  class 2) 150 km  180 km  40 km half-stage 15 km  50 km half-stage 35 km  Men Junior  100 km  120 km  30 km half-stage 15 km  40 km half-stage 25 km  Men Junior Nations’ Cup 120 km  140 km  30 km  half-stage 15 km  40 km half-stage 25 km  UCI  Women’s WorldTour 140 km  160 km  40 km  50 km  Women Elite 120 km  140 km  40 km  50 km  Women Junior 60 km  80 km  15 km  20 km  (text modified on 1.01.05; 1.01.08; 1.01.09; 1.07.12; 1.10.13; 1.01.15; 1.07.18; 1.01.20).  The duration of new events is limited to 4 days, unless an exemption is made by the UCI  Management Committee.  The duration of new events of classes 1 and 2 is limited to 6 days, unless an exemption  is made by the UCI Management Committee.  The duration of existing events can be reduced by the UCI Management Committee. In  that event, the organiser has the right to be heard by the UCI Management Committee. The duration of new events in UCI ProSeries and Class 1 and 2 is limited to 5 days,  unless an exemption is made by the UCI Management Committee.  The duration of events is determined by the UCI Management Committee. However, the  maximum duration of new UCI ProSeries events shall be 6 days in Europe and 8 days  outside Europe. Events that are already registered on the UCI ProSeries calendar may  retain their historical duration subject to UCI Management Committee approval. 