Participating High
Kanai: We divide Japan into nine regions, and stage regional competitions starting in early September each year. Each region is assigned a number of top positions based on proportional participation.
For the technical high school classification, it’s based on the number of participating high schools in the regions. In the open classification it’s based on the total number of entries. For example, the top 4 robots (2 autonomous and 2 radio controlled) in the Shikoku regional competition will go on to compete in the All Japan finals. For the Kanto regional competition the top 12 robots (6 autonomous and 6 radio controlled) go on to the finals since the total number of entries in the Kanto region is much larger than the Shikoku region.
After all the regional competitions, the All Japan Robot Sumo final competition (3 kg. class) for the year is held on December 23rd at the Kokugikan Sumo Hall in Tokyo. Of all the robot entries for the year, only the top 64 autonomous and 64 radio controlled robots get to compete in the finals.