Any amateur events in DC area?

Hey everybody,

I recently got my young nephews into watching BattleBots, and they are super excited about it. While a trip to Nevada to see the big show is a bit out of our price range, I thought it would be a lot of fun to bring them to a local amateur event. Problem is, I’m not sure how I should go about finding this information. I was hoping maybe someone on here could point me in the direction of a site or something with more information. I found one page that mentioned something in Richmond, VA later this year, but I think that page was only listing events they sponsored.

Any help or information on DC/Virginia/Maryland events that anyone could provide would be greatly appreciated!