Rin Nakai def. Mika "Hari" Harigai via submission (Americana) in round 1via
On Thursday December, 30 at Sengoku Raiden Championship's: Sengoku 15 "Soul of Fight" in Tokyo, Japan at The Ariake Coliseum.
Valkyrie Open Weight Champion #4 ranked 145-pound fighter Rin Nakai (10-0-0)defeated Mika "Hari" Harigai (6-23-1) by submission (americana) in a open weight professional MMA match.
Rin Nakai the Japanese sensation last fought and defeated Mizuho Sato on November, 28 to win her Valkyrie open weight Championship. Rin trains at Shooto Shikoku. She is currently the only open weight champion in WMMA.