| Fighter | Nickname | Height | Weight | Association | |
 |
Yasuhiro Kirita | 5'10" (1.78 m) |
205 lbs (92.99 kg) |
Alliance-Square | |
|
Yohei Misawa | 5'6" (1.68 m) |
125 lbs (56.7 kg) |
Alliance-Square | |
|
Yoichi Oi | 5'5" (1.65 m) |
135 lbs (61.23 kg) |
Alliance-Square | |
|
Yoshifumi Yamazaki | 0'0" (0 m) |
135 lbs (61.23 kg) |
Alliance-Square | |
|
Yoshinori Horie | "Rising Star" | 5'8" (1.73 m) |
156 lbs (70.76 kg) |
Alliance-Square |
|
Yudai Aoyama | 5'9" (1.75 m) |
145 lbs (65.77 kg) |
Alliance-Square | |
|
Yuji Fujioka | 5'11" (1.8 m) |
209 lbs (94.8 kg) |
Alliance-Square | |
|
Yukari Suzuki | "Yuka" | 5'0" (1.52 m) |
115 lbs (52.16 kg) |
Alliance-Square |
|
Yuki Ito | 5'9" (1.75 m) |
155 lbs (70.31 kg) |
Alliance-Square / Team Yudetamago | |
|
Yuki Tokushige | 0'0" (0 m) |
0 lbs (0 kg) |
Alliance-Square | |
|
Yusuke Kanaeda | 0'0" (0 m) |
155 lbs (70.31 kg) |
Alliance-Square | |
|
Yuta Watanabe | "Andre" | 5'11" (1.8 m) |
155 lbs (70.31 kg) |
Alliance-Square |
|
Yuta Uchida | 6'0" (1.83 m) |
209 lbs (94.8 kg) |
Alliance-Square | |
