Full match footage: Tatsuya Oiwa vs Kiyomitsu Samuel Nagasawa 　(LIGHTWEIGHT). Recorded live at K-1 REVENGE 2026 in Tokyo, Japan (May 31, 2026). ▼ Follow the Fighters Tatsuya Oiwa https://www.instagram.com/tatsuya.oiwa/ Kiyomitsu Samuel Nagasawa  https://www.instagram.com/k1_samuel/ Connect with K-1 online and on social: 🔴 Website: https://www.k-1.world/ 🔵 X: https://www.twitter.com/K1_ReBoot/ 🔵 Facebook: https://www.facebook.com/share/18ikyEPRWm/?mibextid=wwXIfr 🟣 Instagram: https://www.instagram.com/k1worldwide/ #k1 #k1max #k1wgp #kickboxing #combatsports #martialarts #fighthighlights #fullfight