What you don't fucking believe me? Eat shit. I THINK his name was Suzuke, and he had other Japanese guys there giving him instructions in Japanese. Also he was a champion at the blackbelt level, and he fought at 73kg, so take that for what its worth.
Of course I believe you, the people from the internet make sure everything said on it is true. And I've seen a Brazilian national black belt BJJ champion lose in a white belt judo competition. He was fighting under 73 kg as well, and his name was Silva. If you don't believe me, eat sh*t :icon_chee
Look, all you need to do to convince me, and probably every other skeptic, is to supply a video. National judo champions are a big deal in Japan, and every competition they fight in recorded, often by national level TV. They're even recorded when they do charity events, or play golf etc. This one should be easy for you to produce.
The thing is, some international level judo players do have pretty bad ne-waza (and some like Nakamura who could hang with Roger Gracie for ten minutes quite good). But the few times where Olympic level competitors have entered blue belt BJJ tournaments they tend to win on pure athleticism alone. This is in fact documented (for instance
Jiu Jitsu Forum - Mikael Marffy at 2008 European BJJ Championships). Or look at how Pawel Nastula (old and retired from judo, so not even at the level of your typical Japanese national judo champ) did against Big Nog - it took Nog most of a Pride round to beat him. Is Big Nog really just a BJJ white belt level grappler? Nog's ground skills are way better than Nastula's, but on pure athleticism Nastula was able to hang for 8 minutes with him. It would be an unusual white belt that could counter that level of athleticism, so it'd be very nice to see a video ...
An Olympic level athlete in almost any sport losing at a white belt level is pretty unusual, simply because of the difference in athleticism. Its like expecting a white belt to be able to beat an NFL player - it could happen, but its rare. So footage would be nice.