Lego EV3 Robot Sumo Wrestling BattleBots Challenge - YouTube
Killer Lego sumo bots are back for more | Engadget
Sumo Bot for Lego Boost 17101 instruction with programs (Build Boost Robots — a series of instructions for assembling robots with Boost 17101) - Kindle edition by Evdokein, Vladimir, Gergert, Vyacheslav. Children
Lego sumo 2012 RobotChallenge - YouTube
Projects — St. Joseph Montessori School
LEGO MOC Lego EV3 sumo bot by B0B_the_EV3_Builder | Rebrickable - Build with LEGO