';
| Fighter | Nickname | Height | Weight | Association | |
| Atsushi Atsushi | "Tigerboy" | 0'0" (0 m) |
200 lbs (90.72 kg) |
UBF Gym | |
| Daichi Fujiwara | 5'5" (1.65 m) |
135 lbs (61.23 kg) |
UBF Gym | ||
| Haka Sakino | "Yugetsu" | 0'0" (0 m) |
150 lbs (68.04 kg) |
UBF Gym | |
| Hiraki Hiraki | "Kinkonkankonshochanman" | 0'0" (0 m) |
130 lbs (58.97 kg) |
UBF Gym | |
| Kazuma Tokuno | "Isshin" | 5'8" (1.73 m) |
145 lbs (65.77 kg) |
UBF Gym | |
| Keisuke Ochiai | "Nature Boy" | 0'0" (0 m) |
135 lbs (61.23 kg) |
UBF Gym | |
| Keisuke Kagawa | "Lucky Boy" | 0'0" (0 m) |
155 lbs (70.31 kg) |
UBF Gym | |
| Kenta Hiraki | "Kinkonkankonkenchanman" | 0'0" (0 m) |
155 lbs (70.31 kg) |
UBF Gym | |
| Koji Yamade | "Kozi" | 0'0" (0 m) |
185 lbs (83.91 kg) |
UBF Gym | |
| Mao Ueda | "Pine Maker" | 5'7" (1.7 m) |
145 lbs (65.77 kg) |
UBF Gym / Shooto Gym Chokushinkai | |
| Minori Inoue | "Panna Cotta" | 5'3" (1.6 m) |
105 lbs (47.63 kg) |
UBF Gym | |
| Naoya Naoya | "Oldboy" | 0'0" (0 m) |
155 lbs (70.31 kg) |
UBF Gym | |
| Shinji Shinji | "Lionboy" | 0'0" (0 m) |
200 lbs (90.72 kg) |
UBF Gym | |
| Sho Pantherboy | 0'0" (0 m) |
125 lbs (56.7 kg) |
UBF Gym | ||
| Tadasuke Nozoe | 6'0" (1.83 m) |
155 lbs (70.31 kg) |
UBF Gym | ||
| Takeru Nagatome | 5'4" (1.63 m) |
115 lbs (52.16 kg) |
UBF Gym | ||
| Tomoya Suzuki | "Russian" | 5'7" (1.7 m) |
155 lbs (70.31 kg) |
UBF Gym | |
| Tsutomu Tsutomu | 0'0" (0 m) |
155 lbs (70.31 kg) |
UBF Gym | ||