You must be logged in to your soSAILize account to delete a sailing event of yours.
At the main menu click on "Sailing Events"
and choose "My Sailing Events"
and choose "My Sailing Events" button:
Either way, you will see a page something like this:
Click on the "event title" of the sailing event you would like to delete, in order to go to sailing event's main page.
In your sailing event's main page find the "going-invite-friends-like-options" buttons
and click the "options" one
Click on the option "Delete Event"
In pop-up message click either "cancel" or "delete" button
If "DELETE" is clicked then you see the following
Click "DONE" to go back to "My Sailing Events" page.