KO-D無差別級王座
In early 2011, El Generico began making semi-regular appearances for the Japanese DDT Pro-Wrestling sister-promotion Union Pro Wrestling, making his debut on January 3 with a win over Shinichiro Tominaga. On September 19, El Generico won his first title in Japan, when he defeated Isami Kodaka for the DDT Extreme Championship. After successful title defenses against Shuji Ishikawa and Sanshiro Takagi, he re-lost the title to Kodaka on January 3, 2012. El Generico has also made some appearances for Union Pro's parent promotion, DDT Pro-Wrestling, most notably defeating Kota Ibushi in Ibushi's return match from a shoulder injury on May 4, 2012. On August 18, El Generico wrestled his first match in the Nippon Budokan, defeating the debuting Konosuke Takeshita. On September 30, El Generico defeated Kota Ibushi to win the KO-D Openweight Championship, DDT's top title. El Generico made his first successful title defense on October 21 in a rematch against Ibushi. On November 25, El Generico defeated KO-D Tag Team Champion Mikami for his second successful defense of the KO-D Openweight Championship. On December 23, El Generico lost the KO-D Openweight Championship to Kenny Omega in his third defense.