RIZIN 24 live from the Saitama Super Arena in Japan. The promotion’s 28th event features a sold-out attendance of just 5,000 people due to government restrictions in place during the midst of the coronavirus (COVID-19) pandemic. In the night’s headliner, promotional superstar and Japanese combat-sports phenom Tenshin Nasukawa looks to remain undefeated when he takes on former K-1 title challenger Kouzi. The 22-year-old kickboxing prodigy seeks to add to an already impressive legacy in only his second bout of the year. Meanwhile, Kouzi is set to compete for the first time since leaving K-1 on a three-fight winning streak.

RIZIN 38 live from the Saitama Super Arena in Saitama, Japan. The event includes the continuation of their Super Atomweight Grand Prix and Hiromasa Ougikubo’s first appearance since winning a bantamweight tournament last year. In what is the biggest return of the night, RIZIN Bantamweight Champion Kyoji Horiguchi fights in Japan for the first time since late 2020, facing Kintaro in the main event.

RIZIN World Series in Korea takes place on May 31, 2025, at Paradise City in Incheon, South Korea, marking RIZIN Fighting Federation’s debut in the country. The main event features RIZIN Lightweight Champion Roberto Satoshi de Souza facing Gladiator Lightweight Champion Won Bin Ki in a 71.0kg MMA bout, with de Souza on a three-fight first-round finish streak and Ki showcasing his striking prowess. Other key matchups include Kim Soo Chul vs. Shoko Sato at bantamweight, Juri Ohara vs. Johnny Case at lightweight, and two kickboxing bouts: Sang Hae Jo vs. Hide Meison Usmai and Beom Jun Kang vs. Seiya Inoue. The event, themed as a Japan vs. Korea showdown, features 11 bouts and is broadcast live on ABEMA, U-NEXT, and RIZIN LIVE, with doors opening at 1:00 PM and fights starting at 2:00 PM KST. It’s a historic night for RIZIN, hosted in a luxurious casino resort venue.