Los Angeles, California
Los Angeles has a sprawling judo scene tied to Japanese American community history (Little Tokyo, Sawtelle, Gardena) and reinforced by university programs, immigrant senseis from Japan and Brazil, and a strong Olympic-track contingent at venues like Tenri Dojo and Mojica Judo. Dojos run gradings on traditional schedules and prioritize formal lineage records.
The local picture
Why it works for Los Angeles
OLM's belt_promotions ledger logs each grading with the issuing sensei (by user_id), the dojo, the date, and a free-text note for ceremonial or technical context. A judoka who also trains BJJ keeps separate ranks per discipline — a black belt judoka entering a BJJ academy correctly starts at white in BJJ while keeping their Dan rank in judo. And class templates with hard caps and live waitlists mean a member commuting from Sawtelle to Gardena sees real-time availability before getting in the car.
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.
Los Angeles Judo academies we've heard of
Tenri Dojo · Mojica Judo Club · Sawtelle Judo Dojo
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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