At the moment advertising your event is free for the next few months.  Email the details of your event to listmyshow@googlemail.com detailing the following:
Category ie. Dressage, Eventing etc
What you want your heading to be eg.  Working Hunter Show at Connell Hill
Date including the start time
Location and include postcode if you can
Details of  Event including any links to your website and contact details. (These will be cut and pasted so please check everything is correct)
 

When the event has completed I can edit the entry to show the results (Again these will only be cut and pasted not typed out)