Scheduling recurring event is a nice feature, but it won't be complete without allowing update of event title and ride description for any instance in the series. Our bike club updates a ride title to say cancelled on the calendar due to bad weather. It's now a cumbersome process to delete that instance and recreate a non-recurring event.

On the technical side, make each instance a row in the table so that each instance has its own record and columns. Of course, the interface has to be updated to allow the maintenance of the columns of each instance.