judge scored the fight as a 29-29 draw. The fight went into an extra round, after which Kumura won a unanimous decision. Kumura was scheduled to fight the former Krush Super Bantamweight champion Taito Gunji for the vacant Krush championship, in a Krush super bantamweight tournament final. Gunji had lost the title to Akihiro Kaneko, who later vacated it. Since his loss to Kaneko, Gunji rebounded with back-to-back victories, while Kumura came into the fight with a perfect 5-0 record with K-1. Kumura won the fight by unanimous decision, with two judges awarding him a 30-28 scorecard, while the third judge scored it 30-29 in Kumura's favor. K-1 Super Bantamweight Grand Prix Kumura participated in the 2019 K-1 Super Bantamweight Grand Prix. He was scheduled to fight the 2019 Rajadamnern Stadium 126 lbs champion Phetpangan Mor.Ratanabandit in the quarterfinals. Kumura beat Phetpangan with a first-round technical knockout, managing to knock his opponent down twice inside of the first round. The first knockdown came as a result of a right-straight counter to Phetpangan's front kick, while the second knockdown came as a result of a right hook. Advancing to the semifinals, Kumura beat Samvel Babayan by unanimous decision, and faced the reigning K-1 Super Bantamweight champion Yoshiki Takei in the finals. Takei won the fight by knockout, stopping Kumura with a right-straight 38 seconds into the second round. Kumura vs. Hayashi, Kaneko Kumura was scheduled to make his first title defense against Yuta Hayashi. Kumura was initially supposed to fight Akihiro Kaneko, however, Kaneko declined the fight. Kumura successfully defended his title with a majority decision victory, with two of the judges scoring the bout 29-28 in his favor. Kumura was scheduled to fight a non-title bout with the undefeated Akihiro Kaneko at K’Festa 3. Kaneko was initially supposed to challenge for Kumura's Krush title at Krush 108, but had refused the fight. Kaneko previously fought and beat Masashi's brother Shuhei Kumura by an extra round decision at K’FESTA 2. Kumura won the tightly contested affair through a majority decision. One of the judges scored the fight as a draw, the second judge scored the fight 20-20 after the first two rounds and awarded Kumura the last round, while the third judge scored the fight 30-28 in Kumura's favor. Kumura vs. Gunji II For his second title defense, Kumura was scheduled to fight a rematch with the former Krush Super Bantamweight