Beatrice Jin is the seventh-ranked female lightweight black belt in the world. American Nationals champion. Worlds bronze medalist. She finished Patricia Pacheco with an ankle lock at the 2026 IBJJF Europeans. She also works as a graphics reporter at Politico, because apparently one competitive environment where people argue about technicalities wasn't enough.

Recently, she entered a local judo tournament. As a blue belt. After a two-year break from judo.

She opened with a clean sumi gaeshi. Won her second match on repeated seoi nage entries. Then, against a judo brown belt, she hit a seoi nage, rolled directly into a bow-and-arrow choke from turtle, and her opponent tapped.

Photo: ARLnow/IBJJF
ARLnow/IBJJF

Then her opponent protested the technique.

After a discussion between the referees, Jin received a shido — a minor penalty — for the choke. Not for choking someone. Judo is extremely comfortable with choking. Triangle chokes, rear naked chokes, cross chokes — all legal, all encouraged. You can put someone to sleep with their own collar and the ref will nod approvingly. The problem wasn't that someone surrendered. The problem was where Jin's hand was when it happened.

In BJJ, the bow-and-arrow choke grabs the lapel with one hand and the pants with the other, then arches your opponent like a compound bow until they reconsider their life choices. Legal from white belt to coral belt. In judo, there's an almost identical technique — okuri eri jime, the sliding lapel choke — but the approved version uses two collar grips. No pants. The moment your hand touches the trousers during a strangle, it's a rule violation.

Same choke. Same mechanics. Same opponent tapping. Different hand placement on the uniform.

Here's the thing nobody in the judo community seems eager to mention: the bow-and-arrow choke was born in judo. It emigrated to BJJ decades ago, picked up a pants grip because BJJ doesn't police which part of the fabric you're holding, and became one of the most common submissions in grappling. By some accounts, it's the most frequent choke in 21st-century judo itself. When Jin brought it back to a judo mat, the technique's own birthplace didn't recognize it. It left home clean-shaven and came back with a beard.

Jin didn't argue. She refocused and won the match with a drop tai otoshi — textbook judo, zero ambiguity. "I wanted to show that I actually knew some real judo," she said, "and that I wasn't just walking in without respecting the sport."

She trains at Kogaion Academy in Arlington, Virginia. Not a mega-team. Not a Sao Paulo factory. A local gym where she trains twice a day between designing graphics for a political news outlet. Her coach calls her "one of the few non-Brazilians to compete out of a small local gym" at this level. She's competed in over 250 BJJ matches nationwide. She entered a judo tournament to work on her throws.

She left having confirmed what every cross-training grappler quietly suspects: the hardest part of entering a judo tournament isn't the throws. It's figuring out which part of the gi you're allowed to grab while making someone quit.

Sources

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