Competition event dates are usually known by the end of Winter Convention (February 2010).
Historically the Webfooters put on a play day the first weekend in May, the Moonshiners do Memorial Day weekend, Four at a Time and Free Wheelers do 4th of July weekend, Summer Convention is usually the 2nd weekend in August, and Overbored Racing does Labor Day weekend.
There are several more races than what I listed above. Again, the dates above are not set in stone.
Hope this helps.
PS: Thanks for coming out to Summer Convention to spectate. It was great to see you there. Hope you had a good time.
PNW4WDA and Region 2 Public Relations
Real Deal Doe Run Member