Speedcubing Japan announces hybrid Tokyo record meet and rank certification session
Tokyo’s next Kurukuru Kai splits into two tracks: a morning record meet and an afternoon rank certification session at Ota Ward Citizens’ Plaza.

Speedcubing Japan has set the 61st Tokyo Kurukuru Kai for September 6 at Ota Ward Citizens’ Plaza, and the day is built for two very different kinds of cubers. The morning block runs from 9:05 to 13:20 for the Tokyo record meet, while the afternoon block runs from 14:20 to 17:30 for rank certification.
That split is the key to the event’s appeal. Solvers chasing fast attempts and formal record-style runs get a dedicated morning session, while newcomers and intermediates who want a structured, lower-pressure entry point can use the afternoon certification slot. Speedcubing Japan’s certification system is not a casual side activity: if a solver meets the standard at the event, SCJ issues a certificate on the spot.

The rank ladder itself stretches from 9-kyū through 9-dan and is tied to 3x3x3 solving. SCJ’s published standards start at under 10 minutes to complete one face for 9-kyū and go all the way to under 10 seconds to complete six faces for 9-dan. SCJ also makes one thing clear that matters to newer competitors: the one-face result does not have to be a complete face with the side colors matched.
The September 6 format is not new. Speedcubing Japan used the same morning record-meet, afternoon certification structure at the 59th Tokyo Kurukuru Kai on April 18, 2026, and its event history also shows another Tokyo record meet on January 31, 2026. That pattern points to a recurring Tokyo circuit rather than a one-off showcase, with Ota Ward emerging as a regular hub.
The distinction from a World Cube Association competition is just as important. Speedcubing Japan says its certified record meets follow WCA-style format, but the results are not entered into the WCA database. For Tokyo-area cubers, that makes the event a domestic pathway with its own standards and its own record track, not an international ranking stop.
Demand in the same part of Tokyo has already looked strong. Speedcubing Japan listed Kanto Summer 2026 at Ota Ward Citizens’ Plaza for August 29 and said registration closed early after applications exceeded capacity and created a waiting list. With that kind of turnout, the September 6 hybrid session gives the local scene another chance to pack record chases, certification runs, and first-time steps into one building in Ota Ward.
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