Robot Combat League National Championship

Who will be the Robot Combat League's National Champions?


The Robot Combat League National Championship will bring the Top Ranked Combat Robots from across North America together to see who is truly the best. 

Get your tickets here!

Doors open to the public at 10:30 am on both Saturday and Sunday with matches starting around 11:00.

How are robots selected? Robot ranks are calculated based on how well robots place at participating events. You can get the details on how the ranking scores are calculated here.

What weight classes are included? The championship event will include robots ranging from 150g Fairyweights to 30lb Sportsman. Currently the League tracks 30lb Featherweight ranks but unfortunately we can't run the Featherweight class at this first Championship event due to our arena situation.

What if a top ranked bot can't attend the event? If a top ranked bot can not attend the championship event, robots further down the list will receive an invite.  So if only the top 12 of 16 Sportsman bots can come, the next 4 in the rankings will be invited. To make sure alternates are invited with enough time to make travel arrangements, we are asking that invited robots let us know if they can attend as soon as possible. 

What is the Event Format?

For all weight classes, the event will use a double-elimination format with a single final match. If a team has two robots that are scheduled to compete, the bots must fight each other so you'll need a radio for each robot.  If both bots are functional but you don't want them to fight each other then the winner will be decided by a coin toss. If a bot truely cannot continue due to damage it will be allowed to forefit at the event organizers discretion.

What are the arenas?

Sportsman and Hobbyweight robots will compete in our 12'x16' steel floor arena with a pit in one corner.  The pit has a pronounced lip around it that reduces the chance of accidentally driving in.

Beetleweight will compete in an 8'x8' steel floor arena with a pit in one corner. The pit has a pronounced lip around it that reduces the chance of accidentally driving in.

Antweights, Plastic Ants and Fairy robots will fight in a 5'x6' arena with a small pit in one corner.   Like the big arena it should be difficult to accidentally drive into it.

What are the event rules? The championship event will use standard SPARC rules and procedures. If your bot competed and gained its points and rank in events using non-SPARC rules, you will need to update your bot to comply with the SPARC rules to compete at the Championship event.

Exposed Batteries: In an effort to reduce the liklihood of a full-on battery fire, if a robots batteries are completely exposed the referee will stop the match and the decision goes to the judges.

Arena Unsticks: There are no arena unsticks. With our arena designs, bots rarely become stuck. We do play by pinball rules, meaning that banging on the lexan to dislodge a robot is allowed.

Robot Unsticks: We will follow the standard SPARC procedures. 

Magnets: Magnets are not allowed in the Plastic Antweight and 30lb Sportsman classes. 


When and Where is the Event?

The event will take place at the Seattle Center Exhibition Hall, in the shadow of the Space Needle.

Builder Schedule 

Friday May 5th will be dedicated to check-in and safety as well as taking pictures of the robots and competitors. We get access to the venue at Noon to start setting up. Check-in will start around 2pm. The venue guards will start people exiting the building at 7:30pm, so don't show up late! Robots competing on Sunday will be allowed to do their safety checks on Saturday. Saturday May 6th. The venue will open at 8am to builders. At 10am we will have a builders-meeting At 10:30am the doors open to the public. Very soon after that we will start the matches.  We should be done by 5pm - where Medals will be presented to winners. Sunday May 7th The venue will open at 8am to builders​​. The doors open to the public at 10:30am. Matches start very soon after 10:30 We should be done by 3pm - where Medals will be presented to winners.  

Friday May 5th - Check-in, Safety, and Photos

Saturday May 6th - Antweights, Beetleweights, Sportsman

Sunday May 7th - Fairyweights, Plastic Antweights, Hobbyweights  

Hotel: You can get details on the hotel block on this page.

Shipping: We will provide an address where items can be shipped when the invitations are sent out.

Are you interested in getting involved in the event or the Robot Combat League?

We want this event to be a success and to become a regular yearly event.  If you have skills that can help and/or are interested in volunteering please let us know. If you'd like to help or if you have questions, you can contact us at or fill out this short 3-question Google form

Location: 301 Mercer St, Seattle, WA 98109, USA


From: May 05, 2023 to May 07, 2023

Begin: 10:00

End: 15:30