Nxt sumo robot I made. Everyone teied to build a robot that would push the others out of the arena. I made one that flips everyone's robot : r/ mindstorms
EV3 Sumo Building Instructions
Building | Hackley School
SUMO ROBOT con MINDSTORM EV3, construcción virtual - YouTube
Robot Designs
A Week in the Life #11: Sumobot to Battlebot – LEGO Engineering