New York City, New York
New York's judo scene runs through the Kokushikan Dojo, the Nippon Budokan-affiliated halls, and a tight community across Manhattan and Brooklyn. The market is small but technical, with strong university affiliations (Columbia, NYU, City College) and a steady inflow of international members from Japan, Korea, and Eastern Europe. Members travel for European Cup events and need clean tournament-prep workflows.
The local picture
Why it works for New York City
OLM's free-text promotion notes accommodate international rank credentials (Kodokan certification number, IJF licensing, kyu/dan progression in non-English federations). Class capacity caps and waitlists mean a 6pm Manhattan class fills predictably, and the waitlist promotes as cancellations come in. University semester swings handle through month-to-month plans that auto-pause over summer break.
In every Judo gym, anywhere
Kyu and Dan tracking with promoter lineage
Every grading recorded with the issuing sensei, date, and context. If a student moves to another dojo that also runs OLM, their Dan rank lineage travels with them.
Attendance against grading minimums
Set mat-hour requirements per rank. OLM tells you who meets the threshold for their next grading and who's short.
Shiai & event registration
Stripe-powered sign-ups for tournaments and events. Members pay from the app, you get a clean registration list with waiver status.
Multi-discipline aware
A judoka who also trains BJJ keeps separate ranks per art. Cross-training students are first-class in the system.
New York City Judo academies we've heard of
Kokushi Budo Institute · New York Judo Club · Brooklyn Judo Club
Listed for context only — no endorsement implied. If you run one of these and want OLM to power it, say hi.
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