The 2026 IJF Grand Slam Ulaanbaatar takes place 19–21 June in Ulaanbaatar, Mongolia; it is one of the highest-tier events on the IJF World Tour, with medal points comparable to the World Championships, and counts toward 2028 Los Angeles Olympic qualification.
Japan is sending a 23-member delegation (9 staff + 14 athletes), with Keiji Suzuki (Kokushikan University) as men's team manager and Maki Tsukada (Tokai University) as women's team manager. The men's team features Ryuju Nagayama (-60 kg), Takeshi Takeoka (-66 kg), Ryuga Tanaka (-73 kg), Yuhei Oino (-81 kg), Sanshiro Murao (-90 kg), Ryotaro Masuchi (-100 kg) and Kanta Nakano (+100 kg); the women's team features Wakana Koga (-48 kg), Uta Abe (-52 kg), Akari Omori (-57 kg), Haruka Kashiwagi (-63 kg), Shiho Tanaka (-70 kg), Akane Ikeda (-78 kg) and Mao Arai (+78 kg).
Full announcement: judo.or.jp tournament page