The Crusher The first definitively established LW World Championship in MMA history (in the first major LW division in MMA history) was created when Rumina Sato and Kaoru (Caol) Uno fought for the Shooto 152 Championship (which later increased to 154). At that point, Sato and Uno were the undisputed top-2 LW's in the world. (To thus form not just an official org. title, but a legitimate World Championship.) Uno upset the long-defining (and original) #1 LW in Sato to become #1 himself, and the Undisputed Champion of the division. Uno then loses to Marcio Cromado (although in a non-title fight - so while Cromado had rightfully taken the Championship lineage, Uno still remained the official Shooto titleholder up until he came over to the UFC). Cromado next loses to Mishima, who next loses to Gomi, who next loses to Hansen, who next loses to Shaolin, who next loses to Kawajiri, who next loses to Gomi in the first round of the Bushido LW GP (when Gomi and Kawajiri were universally ranked the top-2 LW's in the world, btw). And also at that point, starting with the Bushido GP - even if you want to disregard any and all prior Championship lineage in the division - the ultimate fact remains that the winner of that Bushido GP had become the completely Unified and Undisputed LW Champion of MMA. (So alternatively, that point could have originated a valid new Championship lineage all on its own.) Before Pride, there had been 2 major LW divisions in MMA history - Shooto's and then the UFC's. And there was no more LW division in the UFC at that point. Yves Edwards vs. Josh Thomson was actually supposed to be for the new UFC LW title - which had remained vacant since Jens had left with the title and the subsequent LW tournament then ended in the BJ-Uno draw - except the UFC decided to completely eliminate the LW division instead. So instead of being a title fight, Yves-Thomson ended up being the last UFC LW fight altogether. And so the UFC's last #1 LW in Yves (the uncrowned champ), as well as its last official champion in Jens, both entered that Bushido GP. As did the reigning Shooto 154 Champion (and also the Linear Champion) in Kawajiri. (With Pride's own #1 LW in Gomi of course being in it as well.) So that Bushido GP had actually collected together every major #1 candidate or preexisting Champion who was currently in the LW division - to thus unify every existing path at LW, and form a truly Undisputed Champion for the division. Which ended up being Gomi. (Who would have been the Linear Champion from the preexisting historical lineage anyway, once he beat Kawajiri). So at that point - following the Bushido GP - Gomi was without question the one Linear Champion, as well as the one reigning Undisputed Champion for the LW division. There was no one else still left in the LW division at that point who could even make a current claim to being the Champ there. But Gomi then loses to Aurelio, who next loses to Ishida, who next loses to Gomi - who had thus regained the LW World Championship, and was without question the Champion (as well as the universally ranked #1) at LW going into 2007. But then this is where things get messy. Gomi then loses to Nick Diaz - at which point, Diaz was without question the Linear Champ. But then the result is officially overturned into a no-contest because of Diaz's positive test for pot (a decision which I personally find extremely objectionable, btw). Thus by virtue of the official no-contest - i.e., that the fight officially did not even happen and there is no result - Gomi retains his Linear Championship. (Although if you still want to count the Gomi-Diaz fight and consider Diaz the de facto Linear Champion - Diaz next loses to KJ Noons, who hasn't lost since. So KJ Noons would have an alternative claim to being the de facto Linear Champion, if you include the Gomi-Diaz fight.) But excluding the Diaz fight through the official no-contest - Gomi next officially loses to Sergey Golyaev, who next loses to Eiji Mitsuoka, who next loses to Kazunori Yokota, who next loses to Kawajiri - who thus becomes the Linear LW Champion again.