STRAVA is a free training service that let's you record your cycle routes, thanks to the data sent by GPS systems. On top of that, STRAVA automatically recognises all the climbs you do and records each part of the climb as a segment to create online leader boards. STRAVA records the time of every single person that does a particular segment and then ranks them on the leader board.
If you've already got friends on STRAVA you can follow them and keep track of their training.
Also, once you're subscribed to STRAVA you can become a member of the Maratona dles Dolomites-Enel club at the following link:
Here are all the last training data of the members of Maratona dles Dolomites-Enel club on STRAVA: