With over 20,000 cyclists taking part on closed roads, the RideLondon-Surrey 100 has quickly become one of Europe's biggest sportives.
Entry is via public ballot which is now open:
The ballot will be closed once they receive 80,000 entries. Charity places are also available for riders who commit to raise money for certain designated charities.
In 2016 an additional RideLondon 46 route was introduced, opening up the event to cyclists keen to experience the excitement of riding through the capital on closed roads over a shorter 46-mile distance.
Billed as the cycling equivalent of the London Marathon, it looks likely that it will become harder and harder each year to secure a place in the RideLondon 100.
Read Tristan Wootton's Ride Report from the 2013 event and Oisin's report on the washout that was the 2014 RideLondon sportive.
Thinking of entering, but not sure whether you have the experience? You can do it! Read George Pickering's report on riding the 2016 edition as a sportive newbie.
Event date is subject to change