Update - as at 30 November 2017:
There is no need for a ballot as the number of entries received by 24 November was less than 550. Entries for the Main Event received from now on will be placed on a pre-selection list so that qualifiers can be checked. Valid entries will be accepted, up to a limit of 550, until 16 April 2018.
Entries for the Cinque Ports 100 opened on Monday 9 October 2017.
You can now enter via SiEntries.
The website has early details of the route, together with other particulars of the event and useful information for visitors to Kent.