IWGP Junior Heavyweight Tag Team Championship
Shelley returned to the ring on June 21 at Dominion 6.21, where he and Kushida defeated The Young Bucks to win the IWGP Junior Heavyweight Tag Team Championship for the second time as a team. On August 10, Time Splitters made their first successful defense of the IWGP Junior Heavyweight Tag Team Championship against the ROH tag team reDRagon. Time Splitters made their second successful title defense on September 23 against Suzuki-gun (El Desperado and Taichi). On October 13 at King of Pro-Wrestling, Time Splitters made their third successful title defense in a three-way match against Forever Hooligans and The Young Bucks. On November 8 at Power Struggle, Time Splitters lost the title to 2014 Super Jr. Tag Tournament winners reDRagon. Time Splitters received a rematch for the IWGP Junior Heavyweight Tag Team Championship on January 4, 2015, at Wrestle Kingdom 9 in Tokyo Dome, in a four-way match also involving Forever Hooligans and The Young Bucks, but were again defeated by reDRagon. On February 11 at The New Beginning in Osaka, Time Splitters received another title shot in a three-way match, but were this time defeated by The Young Bucks, who became the new champions. On May 3 at Wrestling Dontaku 2015, Shelley unsuccessfully challenged Kenny Omega for the IWGP Junior Heavyweight Championship. Later that month, Shelley suffered ligament damage and an avulsion fracture in his left foot, which forced him to pull out of the 2015 Best of the Super Juniors. Shelley returned to New Japan ring in September and on September 27 at Destruction in Kobe, he and Kushida unsuccessfully challenged reDRagon for the IWGP Junior Heavyweight Tag Team Championship. Following the 2015 Super Jr. Tag Tournament in November, Shelley left Japan.