If you were registered for the previous year's race then you were notified via an email sent to the email address you provided on last year's application.

Only those who were notified of their account are able to use the online system.  No one can create or request to be added to the online system.  

Furthermore if you did not provide an email address then your application will not be accessible regardless of your last year's status.  If you provide your email address,  as requested each year on the race application, on your paper application, then you will be added for the following year's race.

Once you have used the system your information will continue to reside in the system and you can use it in the future.