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Robot Combat League National Championship

Seattle, WA, US

May 5 - May 7, 2023

Event Information

Organizer: Robot Combat League National Championship
Location: 301 Mercer St
Seattle, WA 98109

Get Directions
Starts: May 5, 2023
Ends: May 7, 2023

Robot Classes / Competitions

Category Robot Class Maximum
Pit Crew
Combat 150 g - Fairyweight Unlimited None Unlimited
Combat 1 lb - Antweight Unlimited None Unlimited
Combat Plastic Ant Unlimited None Unlimited
Combat 3 lb - Beetleweight Unlimited None Unlimited
Combat 12 lb - Hobbyweight Unlimited None Unlimited
Combat 30 lb - 30lb Sportsman's Class Unlimited None Unlimited

Event Description

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.

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 we are unsure if the Featherweight class will be included in this first Championship event due to our arena situation.

I think my bot may be invited. What do I need to do? If your Team and Robot(s) are in the RobotCombatEvents system, just make sure your email contact information is up to date. You will be contacted near the end of the League's season in late Feburary 2023 about an invitation. 

If your bot has "-temp" after it's name, it means that you don't have a Team and Robot entry in the RobotCombatEvents system, Sign up and add your Team and Robot(s).  Once that is done, send an email to us letting us know which robot is yours and which events you participated in so we can update the ranks to include you.

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. The number of invited bots in the table below is subject to change.

Weight Class Count
150g Fairyweight 16
1lb Antweight 32
1lb Plastic Antweight 16
3lb Beetleweight 32
12lb Hobbyweight 16
30lb Sportsman 16

What is the Event Format?

The event will use a standard 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 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. 

We are working with the fire marshal to determine if flame weapons will be alowed.

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.

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.


The details of the schedule are still being figured out.  May 5th will likely be dedicated to check-in and safety as well as taking pictures of the robots and competitors. We may do all weight classes on both the 6th and 7th.  This would allow bots to have more time between matches for repairs.  Alternatively we may do different weight classes on different days, allowing builders to only attend on the date of their bots weight-class.

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

Saturday May 6th - Antweights, Beetleweights, Hobbyweights

Sunday May 7th - Fairyweights, Plastic Antweights, Sportsman  


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

Other Events by Robot Combat League National Championship

Event Date Location Robots
Robot Combat League National Championship (This Event) REGISTRATION OPEN May 5, 2023 Seattle, WA, US
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