RoboCup Junior Soccer
To build a team of 2 autonomous robots to track a
special light-emitting ball and kick goals against an
opposing team within an enclosed field.
• Any robot kit or building block, either commercial or from raw
hardware may be used as long as the robot meets the remaining
• Must weigh less than 2.5kg.
• Robots are to be constructed using strictly LEGO brand pieces,
motors and sensors only plus an after market Compass sensor.
• No other building materials can be used, including glue, tape,
• Teams can not have any member with greater than two years
experience in playing RCJ Soccer at a state or national level.
• Must weigh less than 1kg.
The playing field
An infrared (IR) ball 7.5 - 8.0cm in diameter.
- In the Open League the ball will be pulsed.
- In the Novice League the ball will be unpulsed.
It is very important for teams to decide very early on which
League to enter and in turn how to program their robots based on
the mode of the ball.
- For both Leagues robots must be able to fit within a 22cm
diameter by 22cm high cylinder.
- Novice League: Max 1kg.
- Open League: Max 2.5kg.
- Robots must be autonomous.
- The use of any type of remote control is not allowed.
- All teams will consist of no more than 2 robots.
Robot must haves
A way to move
- Novice League: 2 wheels and a castor are best.
- Open League: Omni directional wheels work well.
- If you can make your robots walk then we’d love for you to enter
A way to find and track the ball
- Novice League: Only LEGO light sensors.
- Open League: Any light sensors of your choice.
A way to find the opposing goal
- Both Leagues can use any commercial compass sensor.
- Light sensors can also be used to detect colour gradient
- Unlimited team members
- Each team is required to nominate a “Captain” that will be
charge of placing and starting/stopping the robots during each
- Dress your team and robots up in matching team colours like a
real soccer team!
- Teams will undergo a 5-10 minute interview in which they must
demonstrate their understanding of their robots and their
- Proof (photos, log books, plans etc.) must be supplied that the
robots have been constructed and programmed by the students.
- Proof of full understanding of the program must be shown.
Length of game
- Games consist of
two 10 minute halves.
- 5 minute break
- Organisers will try to
allow for 10 minutes
of setup time between
- A goal is scored
when the whole of the
ball crosses the goal
line and hits the back
wall of the goal.
- After a goal is
scored the non-
scoring team will be
awarded the ball for
Tasmanian RCJ Soccer Manager