Jun Kasai
On March 20 at DDT's 20th anniversary event, Sasaki defeated Jun Kasai to win the DDT Extreme Championship for the first time. On August 20 at DDT's 20th anniversary show, Sasaki successfully defended the title against Akito in a "Cabellera Contra Cabellera" (Hair vs. Hair) match, forcing Akito to have his head shaved afterwards. On September 24, Sasaki took part in a three-way match, where he faced KO-D Openweight Champion Konosuke Takeshita and Independent World Junior Heavyweight Champion Ken Ohka with all three defending their titles. Sasaki won the match by submitting Ohka, retaining the Extreme Division Championship and winning the Independent World Junior Heavyweight Championship. Sasaki lost the Independent World Junior Heavyweight Championship back to Ohka on December 20. Ten days later, Sasaki lost the Extreme Division Championship to Yuko Miyamoto in his ninth defense at an event produced by Damnation.