The ReBOOT K-1 ReBIRTH event takes place on September 10, 2023, at Yokohama Arena in Yokohama, Japan. This kickboxing spectacle features an eight-man Openweight Grand Prix with fighters like Liu Ce, Claudiu Istrate, Sina Karimian, and Ariel Machado. Akihiro Kaneko defends his Super Bantamweight title against Masashi Kumura in a trilogy bout co-headlining the night. Additional matchups include Taito Gunji vs. Angelos Martinos and Mikio Ueda vs. K-Jee. It marks K-1’s 30th anniversary and a bold relaunch with global aspirations for 2023.
| Actor | Role |
|---|---|
| AAkihiro KanekoSelf | Self |
| MMasashi KumuraSelf | Self |
 Mikio UedaSelf | Self |
| KKeisuke NakajimaK-Jee | K-Jee |
| TTaito GunjiSelf | Self |
| AAngelos MartinosSelf | Self |
| TTomoya YokoyamaSelf | Self |
| YYuki EgawaSelf | Self |
| CCe LiuSelf | Self |
| VValentin BordianuSelf | Self |
 Ariel MachadoSelf | Self |
| MMichal TurynskiSelf | Self |
| SSina KarimianSelf | Self |
| KKerim JemaiSelf | Self |
 Claudio IstrateSelf | Self |
| MMahmoud SattariSelf | Self |
| MMiyuu SugawaraSelf | Self |
| MMaria NellaSelf | Self |
| KKento ItoSelf | Self |
| YYuzuki SatomiSelf | Self |
| KKoji IkedaSelf | Self |
| SShinta KatoSelf | Self |
| HHayato SuzukiSelf | Self |
| MMohamed IslamSelf | Self |