actually I think it is the 31st, and the Briar Valley is the 30th
I also think there is a thread called "SANCTIONED TOURNAMENTS DATES" and it's listed in the tournament section, and I also think it has every date for every tournament for the rest of the year, as long as the TD has told Keith about it. Oh look, it's the second or third post on the tournament page!!
Do a little reading people... http://discgolfatlanta.com/phpbb/viewtopic.php?f=3&t=2169