You seem to have some concepts erroneous my friend. Judo comes from jujitsu, also called traditional or Japanese Jujitsu. It's founder Jigoro Kano too techniques from jujitsu and discarded weapons and others, and founded Judo. The sport of Judo trains in two aspects, standing grappling, and ground grappling. Brazilian jiujitsu comes from kodokan Judo, Helio Gracie took techniques from it (mostly ground grappling techniques), and founded Gracie or Brazilian jiujitsu. The two arts share many techniques, but the rules of competition are different. Abu Dabi is an open grappling competition, Judokas, Brazilian Jiujitsu practitioners, and wrestlers all compete in it. Brazilian jiujitsu champions would not dominate Judo tournaments because the rules are different, they could outperform Judokas on the ground, but not the standing and throwing. It'd be similar to Brazilian jiujitsu competitors going to Sambo competitionsm, they could do well, but there are aspects that are different, for instance, Sambo has ALOT of leg locks. Even Rickson Gracie and his mythical 400-0 record was exposed when he lost in a Sambo match. There's been lots of Judo vs. Brazilian Jiujitsu matches, look up Helio vs Kimura, the rivalry was awesome.