Rumble in Rush 4 is scheduled for August 14th
A, B and C class fights
See this thread

Informed Performance will be holding a Submission Wrestling Tournament on Saturday, August 7th. The format is simple. Competitors will be entered in divisions and will fight off against everyone in that division in a League format. 3 points will be given for a submission victory, and 1 point each of there are no submissions in the time period.
There are 10 spaces available in each division. Full rules and formats are available from Barry Oglesby, Informed Performance Combat Sports Director by mailing barry@informedperformance.com
THIS IS A PRE-PAY ONLY TOURNAMENT. Be fair to to your fellow competitors and the tournament organisers by registering and then guaranteeing your attendance on the day through the pre-pay methods. For more details contact Barry on the above e-mail address.
More info here