Skip to main content
  1. Home
  2. Emerging Tech
  3. News

You wouldn’t want to meet these robot sumo wrestlers in a dark alley

Add as a preferred source on Google

While some may be quick to dismiss the sport of sumo as a couple of fat fellas slapping each other about on a sandy floor, watch just a few bouts and you’ll soon come to appreciate the level of skill, strength, and agility that’s required to be a leading wrestler.

Likewise, robot sumo, which in recent years has become a popular pursuit for a dedicated group of Japanese computer geeks, may at first look like nothing more than bits of tech malfunctioning really badly. However, as with the human version, a closer look reveals that actually a good deal of talent is at work. (OK, perhaps not with all of them.)

Recommended Videos

To show the sport at its best, Canada-based YouTuber Robert McGregor has edited together multiple robot sumo clashes filmed at contests across Japan over the last few years.

As with regular sumo, a bout in the robotic version finishes when one of the machines succeeds in pushing the other out of the ring. Some of the robot challengers are autonomous, while others are controlled remotely by a team member.

As you’ll see, the speed at which these tiny vehicles move is astonishing — and no, the video hasn’t been sped up.

While most of the contraptions look fairly similar in design, with a ramp at the front and occasionally with attached flaps for sweeping the opponent out of the ring, the clever stuff happens with the software that drives the robots. As with regular sumo, the machines have to be able to move quickly and respond without hesitation to secure victory.

Be sure to check out the particularly amusing fight at 1:00, which ends with an all too easy victory for one of the robots. There’s also the briefest of bouts at 2:58 featuring an unusual yet highly effective design that somehow keeps within the rules, while the poor bot at 4:09 appears to spill its electronic guts into the ring before being unceremoniously shoved out of sight.

Robotic sports have proved a fun way for tech enthusiasts to develop and showcase their skills. Besides robot sumo, we’ve also seen robot soccer events and, just recently, robot volleyball players.

Trevor Mogg
Contributing Editor
Not so many moons ago, Trevor moved from one tea-loving island nation that drives on the left (Britain) to another (Japan)…
Your next EV battery could start life as a plastic water bottle
Penn State researchers have found a way to turn discarded PET plastic into battery-grade graphite.
Kid holding plastic bottles

Plastic bottles usually end up being recycled into lower-value products, buried in landfills, or worse, polluting the environment. But researchers at Penn State University believe they could one day power electric vehicles, smartphones, and even renewable energy storage systems after discovering a way to convert discarded plastic into high-quality battery graphite.

Turning plastic waste into battery-grade graphite

Read more
Anthropic’s most powerful AI is making a comeback, but only for a select few
The U.S. government has approved the limited return of Mythos 5 as Fable 5 edges closer to a wider release.
Claude Fable 5 and Claude Mythos 5 Official Render

Anthropic's AI restrictions may finally be starting to thaw. After being forced offline earlier this month over U.S. government security concerns, the company's most advanced AI models are slowly making a comeback. According to a new report from Axios, Anthropic has already restored Mythos 5 for a limited number of trusted users, while Fable 5 could return as early as next week if ongoing discussions with federal agencies continue to progress.

Mythos returns first, while Fable waits in the wings

Read more
Everything is not okay with DuckDuckGo and its AI
A coordinated Reddit campaign appears to have tricked multiple AI search assistants into spreading false information.
The DuckDuckGo logo.

DuckDuckGo has built its reputation on privacy-first search, but this week, its AI assistant landed in hot water for an entirely different reason. Apparently, Duck.ai confidently claimed that U.S. President Donald Trump had died of rabies earlier this month, complete with fabricated details about Vice President JD Vance, Robert F. Kennedy Jr., and fake supporting news reports. None of it was true.

A fake Reddit campaign managed to fool Duck's AI

Read more