We have used EventAssistant from KBS to manage our events for a number of years. This now has a 'Clubhouse' facility which allows you to create a sailor profile - and even a boat profile. If you create yourself a profile, and tell your helm/crew your id number, then a boat profile can be created, which will be used to fill in all the details for your entry at an event. This can also be used to enter any other event that is managed by EventAssistant. This can be linked to class membership as well...
When creating a profile please consider that the mobile/event contact number should be a shore-based emergency contact, not a competitior's mobile(unless it is left with an appropriate shore-side person when you are sailing). Using your profile to enter and event requires you to keep your profile up to date - or edit event details where necessary!