In December, Tencozy made it to the finals of the 2013 World Tag League, defeating K.E.S. in the semifinals, before losing to Doc Gallows and Karl Anderson. On April 6, 2014, at Invasion Attack 2014, Tencozy defeated The IronGodz to win the NWA World Tag Team Championship. After four successful title defenses, they lost the title to K.E.S. on October 13 at King of Pro-Wrestling. The following month, Tencozy took part in the 2014 World Tag League, where they finished with a record of four wins and three losses, failing to advance to the finals. On February 14, 2015, at The New Beginning in Sendai, Tenzan defeated Rob Conway to win the NWA World Heavyweight Championship. He made successful title defenses against Kojima on March 21 and Big Daddy Yum-Yum on April 29. In the 2015 G1 Climax, Tenzan finished second to last in his block with a record of three wins and six losses. On August 29, Tenzan lost the NWA World Heavyweight Championship to Jax Dane in San Antonio, Texas. On April 10, 2016, at Invasion Attack 2016, Tenzan unsuccessfully challenged Katsuyori Shibata for the NEVER Openweight Championship. When the participants for the 2016 G1 Climax were revealed, Tenzan was surprisingly left out of the tournament. Tenzan was a former three-time G1 Climax winner and the holder of the record for most wins in G1 Climax matches, who had participated in every tournament since 1995 with the exception of the 2010 tournament, which he missed due to an injury. Afterwards, Tenzan repeatedly expressed his anger at being left out of possibly his last G1 Climax. However, on July 3, Satoshi Kojima bowed out of the tournament and agreed to give his spot to Tenzan under the condition that he goes on to win the tournament. Tenzan later confirmed that the 2016 G1 Climax would be his last. After kicking off his tournament with two wins, Tenzan lost all seven of his following matches, finishing last in his block. On March 6, 2017, Tencozy defeated Tomohiro Ishii and Toru Yano to win the IWGP Tag Team Championship for the sixth time. They lost the title to War Machine (Hanson and Raymond Rowe) on April 9 at Sakura Genesis 2017. Tencozy would participate in every World Tag League from 2015 onward, failing to advance to any finals. Tenzan main evented the retirement show for Takashi Iizuka who had betrayed him