How about trying this: if you paid by credit card, call them up and have the credit card payment reversed. You might think that you don't have sufficient grounds because they did deliver the services paid for (the race event). But think about it- the price money was probably stated under the race information, in writing, and they did not honor those terms (at least not yet). So they breached the agreement of the services promised. And not you want your money back because they violated those terms. Seems legit to me, and Visa and MC are generally willing to help you argue your point on your behalf.
Of course, this only works for credit card payments.
You're most welcome, and hope it works out for you.