These autonomous sumo wrestling bots are freakishly fast - The Verge
See Japanese sumo robots clash in ruthless combat - CNET
Tokyo, Japan - Robot operators from seven countries (Brazil, Mexico, Turkey, Latvia, Mongolia and Estonia) compete at the International Robot Sumo Tournament 2013, in the Ryougoku Sumo Hall (Ryogoku Kokugikan) on December
How to Make Arduino Sumo Robot - Hackster.io
An Amazing Compilation of Super Fast Japanese Sumo Robots Facing Off Against Each Other
Deep Learning Sumo Robot - Latest Open Tech From Seeed