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WRO Categories

At WRO we offer challenging competitions for everyone in the age from 6 up to 25. We have four competition categories, with their own characteristics and challenges:

  • Regular Category
  • Open Category
  • SumoBots Category

Each season the challenges and theme for the Regular and Open Category are developed together with the country that hosts the International Final.

For all specific rules and regulations refer to the General Rules for each Category!

Overview of all WRO Categories

Regular Open SumoBots
Age WeDo (*): max. 10
Elementary: max. 12
Junior: 13-15
Senior: 16-19
WeDo (*): max. 10
Elementary: max. 12
Junior: 13-15
Senior: 16-19
Elementary: max. 12
Junior: 13-15
Senior: 16-19
Team size 2-3 people + coach 2-3 people + coach 2-3 people + coach
Hardware WeDo: Only LEGO®
Other: LEGO® + HiTechnic Color Sensor
WeDo: LEGO® for robot model + no restriction for exhibition
Other: No restriction on the use of controllers and other materials (**)
Only LEGO Ev3 or Spike Prime Robots.  No 3rd party sensors for 2021
Software Free choice Free choice Free choice
Maximum size Max. 25 x 25 x 25 cm Booth of 2 x 2 x 2 meters 12 inches (Length), 12 inches (Width), unlimited height, 4lbs maximum weight
At WRO since 2004, 2018 (WeDo) 2004, 2018 (WeDo) 2021
Characteristics WeDo: Game table Designed for the little ones.
Other: Surprise Rule and assembly of the robot on competition day.
It is so open that you can enjoy your creativity! Basic game is SumoBots, small modifications in rules each year.

(*) Please note: There is no competition at the International Final for the WeDo age group.

(**) Teams at WRO International Final have the option to win the LEGO Education creativity award if they mainly use NXT / EV3 (LEGO) controllers.

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Regular

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SumoBots

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