At the time, he already held the NWA World Middleweight Championship; during this reign he also became the WCW Cruiserweight Champion, making him the most decorated wrestler in history.

He moved to Mexico where he joined the Universal Wrestling Association and subsequently won the UWA World Welterweight Championship in 1988.

[6] Asai made his American debut for the World Championship Wrestling (WCW) promotion in August 1996 initially under the mistranslated name "Ultimate Dragon".

He then turned on Onoo and began a face run and (kayfabe) moved back to Mexico and regained the World Television title from Regal before losing to Alex Wright at Clash of the Champions XXXV.

His first class of students, which included Don Fuji, Dragon Kid, Magnum Tokyo, Cima and Suwa, worked for WCW early in their career.

[8] In 1998, Asai began co-promoting Grupo Internacional Revolución (IWRG) based out of Mexico, where he trained several of the top young wrestlers.

On November 26, he teamed with former WCW wrestlers Norman Smiley and Perry Saturn in a win against Masaaki Mochizuki, Kenichiro Arai and Toru Owashi for T2P.

[8] In the spring of 2003, he signed with World Wrestling Entertainment as the Último Dragón, seeking to realize his two lifelong goals of competing in Madison Square Garden and performing at WrestleMania.

in a match with Shannon Moore, where he debuted his finisher, the Asai DDT (a standing shiranui), to the American wrestling audience.

[6] Throughout the summer he competed in a tournament for the WWE United States Championship beating Jamie Noble but losing to eventual winner, Eddie Guerrero.

He also took part in the short lived Japanese independent promotion Dragondoor, ran by one of his students Noriaki Kawabata using mostly T2P and Toryumon X graduates.

Since the fall of Dragondoor he went back to Mexico to run another class of the Toryumon school, which has led to some standouts in Hajime Ohara, Kazuchika Okada and Pequeño Ninja.

He has wrestled against Sonjay Dutt, M-Dogg 20, Chris Sabin, Alex Shelley, Jyushin Thunder Liger and Black Tiger all in the UWA.

On December 15, 2013, Dragón defeated Yoshinobu Kanemaru to win All Japan Pro Wrestling's World Junior Heavyweight Championship.

On March 22, 2015, Dragón won another title in All Japan, when he and Kanemaru defeated Mitsuya Nagai and Takeshi Minamino for the All Asia Tag Team Championship.

The first was Bloodstained Memoirs, also starring Chris Jericho, Rob Van Dam, Mick Foley and Keiji Muto.