Below follows the rules for the competitions held during Swedish Robotics Championship, as well as some Frequently asked questions

The rules where last updated 2018-01-25. The changes made for each competition is summarized in the beginning of each document.

The planned competitions are:

  • Micro Sumo
  • Mini Sumo
  • Lego Sumo (If there are enough contestants)
  • Standard Sumo (If there are enough contestants)
  • Standard Line Following
  • Advanced Line Following
  • Standard Folk Race
  • 1:87 Folk Race
  • Freestyle

It is important to remember that it takes at least 4 contestants in a class for a competition to take place. Therefore it is not entirely guaranteed that Lego and standard sumo will be arranged, since there have been few contestants in these classes the last few years. You are free to register for these classes but be prepared that there may not be a proper group play. The registration closes a week before the competition day and we will then inform you if there is enough people in each class.

Swedish Robotics Championship consists of the following competitions:


In this competition the robots try keep themselves in the ring for as long as possible. Important factors are power, speed and a good sense of surroundings. There are several classes, from the largest standard class down the smallest pico class. During Swedish Robotics Championship, competitions in all classes where there is an interest will be held. This applies primarily to Standard, Mini and Micro. New from 2015 is Lego-sumo.

Rules for Sumo, all classes (English) [pdf]

A corollary to these rules is the specification for the remote start system. This applies to standard-, mini-, micro- and nano sumo robots. They are found using the following link (external page):
Specification for remote start system [pdf]

Line following:

In this competition the robots compete in trying to follow a line the fastest. Here, speed and control are the primary challenges.

Rules for Line following, standard and advanced (English) [pdf]

Folk race:

The goal of Folkrace is that the robots shall drive around a walled course. In this competition, multiple robots compete at the same time, so it is important to be able to tell what is a robot and what is a wall.

In 2014, some bigger changes of the competition format have been made. Make sure the rules carefully.

Rules for Folk race (English) [pdf]


In Freestyle Exhibition, any robot can compete, no matter size, appearance or function. Only your imagination sets the limits. The robots will be judged in categories such as hardware, intelligens and usefulness.

Rules for Freestyle (English) [pdf]

FAQ: Frequently Asked Questions

If you have any questions regarding the rules, please contact the championship management at

General about the competition

Are there any problems with being sponsored by a company? In that case, are there any limits to what can be sponsored.

Answer: No, there are no problems and there are no restrictions concerning being sponsored by a company.

Does a change of battery count as modification of hardware?

Answer: We don’t have any clear guidelines for what counts as change of hardware and what doesn’t. That assessment is normally done at the competition from case to case. If you would like to have an assessment on before-hand, please send us pictures/videos on what you want to change. Concerning the specific case of battery change, this is OK, as long as the new robot still complies with the rules.

Are there any limits to the computing capacity of the robot or what can you build your robot with within the physical limits of rules?

Answer: No, there is no such limit, as long as all computation is done on the robot and that the restrictions for size and weight are met.


Is the robot allowed to “lift” the opponent out of the dohyo?

Answer: Yes, this is allowed. But remember that the robot may not harm the other robot the dohyo.

Concerning jamming signals, does this also apply to lamps and LED’s?

Answer: If the purpose of your signals is to jam the opponents sensors (i.e. with lamps radiating string IR-light with the purpose of saturating the opponents sensors) it’s not allowed. Most bulbs etc. are included in this. It is however allowed to use normal LED’s on the robot to, i.e. signal the status of the robot.

Must the robot have contact with the dohyo at all times?

Answer: No, it doesn’t. The robot must however not fly actively. This does not mean that the robot automatically loses if it happens to jump, but it may not be built for flying.

Line following

Will there be any sharp corners?

Answer: No, because a sharp corner would have a radius less than 7.5 cm (which is not allowed).