The Japanese kickboxing promotion K-1 JAPAN GROUP has announced that the contracts of two notable fighters, Taito Gunji and Masashi Kumura, officially concluded on April 30, 2025. This development represents another significant setback for the organization amidst recent departures of key talent.
Taito Gunji first made his mark in K-1 after his debut in Krush in 2015. He rapidly ascended through the ranks, culminating in his victory for the K-1 featherweight (-57.5 kg) championship in 2021. His impressive run, including a 13-fight winning streak and his title reign, ended with a loss to Takumi Terada last year, which proved to be his final appearance under the K-1 banner.
The 26-year-old fighter conveyed his feelings on social media, expressing gratitude for his time and learning experiences at K-1 following the end of his contract on April 30. He declared his intention to pursue new challenges and stages, asking fans to anticipate the announcement of his next fight. Gunji also clarified that while his K-1 contract has ended, his gym contract remains in place, marking this as a significant turning point in his career.
Masashi Kumura, a former Krush champion notably recognized for his trilogy of bouts against the reigning K-1 super bantamweight (-55 kg) champion Akihiro Kaneko, also confirmed his departure. He stated that his contract with K-1 fully expired on April 30, 2025, acknowledging K-1 as an important organization with many special memories for him. Kumura indicated his decision to leave K-1 for the time being is to focus on improving himself and competing on a stage he seeks, inviting fans to look forward to “the second chapter of Masashi Kumura.”
The exits of these two prominent fighters follow in the wake of other significant departures from the promotion, including major stars like Takeru, Masaaki Noiri, and Yuki Yoza. This ongoing trend prompts questions among fans and observers regarding the future landscape and fighter roster of the Japanese kickboxing organization.
Murray Blackwood 
Gareth Pendleton