ROBO-ONE
📍 Kanagawa, Yokohama
Human-sized humanoid robots throw real punches, kicks, and judo-style throws at each other in a boxing-style ring — Japan's 24-year-running bipedal robot combat tournament, free to walk in and watch.
Twice a year, a hall in Yokohama fills with human-sized bipedal robots that walk into a ring and try to knock each other down — the longest-running bipedal robot combat tournament in the world, going since 2002.
Why It’s Interesting
ROBO-ONE is a robot competition built entirely around one hard constraint: every fighter has to be a two-legged, human-scale humanoid robot, not a wheeled or treaded machine. Before any robot is allowed to fight, it has to pass a pre-screening test — ten steps in ten seconds, and getting up unassisted from lying face-down and face-up — followed by a two-minute autonomous demonstration judged by a panel. Only then do the actual bouts happen, on day two, fought roughly like K-1 kickboxing: robots trade punches, kicks, and throws, and a match ends when one robot is knocked down, knocked out of the ring, or simply can’t get back up. It’s a genuinely odd spectacle — part sports event, part engineering showcase, part slapstick, since a fair number of matches end with a very expensive robot faceplanting to loud applause.
The 45th ROBO-ONE, presented by Plant Life Systems, runs September 26-27, 2026 at the Kanagawa Prefectural Youth Center in Yokohama. Saturday is preliminary battles; Sunday is the final tournament plus the 7th ROBO-ONE Beginners, a friendlier sub-event for newer builders competing with more accessible robot kits. The series alternates between Tokyo-area and more remote venues to spread interest around the country, and admission is free — no ticket, no pre-registration, spectators just walk in.
Best Time to Visit
The 45th tournament is Saturday, September 26 (preliminaries) and Sunday, September 27, 2026 (finals + Beginners). ROBO-ONE runs on this kind of biannual, venue-rotating schedule rather than a fixed annual date, so check the official site for the next event if you’re planning further ahead.
Getting There
The venue is the Kanagawa Prefectural Youth Center in Momijigaoka, Nishi-ku, Yokohama — about an 8-10 minute walk uphill from JR/subway Sakuragicho Station, or roughly 13 minutes from Keikyu Hinodecho Station.
🐿️ Cinnamon was here
Field report
A traveler called ghost popsicle wrote in asking about robot battle events near Tokyo in late September, and this is the best one I turned up: twice a year, human-sized humanoid robots throw real punches and kicks at each other until one falls or gets knocked clean out of the ring.
I squeezed onto a folding chair at the Kanagawa Prefectural Youth Center and watched two robots trade K-1-style blows while their handlers shouted instructions like corner men. One robot took a standing eight-count, exactly like a human fighter, before its knee gave out for good. I tried climbing into the empty ring between matches. Staff disagreed.
It's free, anyone can walk in, and the whole hall smells like solder and vending-machine coffee. Sakuragicho Station is eight minutes downhill — bring snacks, the bouts run all afternoon.
— Cinnamon 🐿️
📸 Cinnamon's camera roll
Snapshots from our very good boy on the road.
Where it is
Nearby discoveries
Yokohama Minato Mirai Festival (GREEN×EXPO 2027 Fireworks)
Yokohama Night Flowers
Nissan Water Park
Kawasaki Daishi
Comments
- No comments yet — be the first to share a tip.