| Fighter | Nickname | Height | Weight | Association | |
 |
Harshit Harshit | 6'6" (1.98 m) |
265 lbs (120.2 kg) |
One Punch Club | |
|
Hartley Peter | 5'7" (1.7 m) |
145 lbs (65.77 kg) |
K-One MMA Academy | |
|
Harvey Park | "Fightbot" | 6'0" (1.83 m) |
155 lbs (70.31 kg) |
Force of One Martial Arts |
|
Herkus Lukosiunas | 6'1" (1.85 m) |
170 lbs (77.11 kg) |
One Blood | |
|
Hiroshi Miyakita | 0'0" (0 m) |
145 lbs (65.77 kg) |
X-One Gym Shonan | |
|
Hossam Ahmed | "Abo Asha" | 5'9" (1.75 m) |
155 lbs (70.31 kg) |
One Team |
|
Hugo Delgado | 6'1" (1.85 m) |
185 lbs (83.91 kg) |
One A One | |
|
Huinderton Barbosa | "Cavadeira" | 6'4" (1.93 m) |
185 lbs (83.91 kg) |
Open One |
|
Ian Selvarajoo | 0'0" (0 m) |
0 lbs (0 kg) |
K-One Martial Arts Academy | |
|
Isidro dela Paz III | 0'0" (0 m) |
135 lbs (61.23 kg) |
The Alpha One | |
|
Islam Abduragimov | 5'11" (1.8 m) |
165 lbs (74.84 kg) |
One Blood | |
|
Ivan Cegatta | 0'0" (0 m) |
155 lbs (70.31 kg) |
Open One | |
|
Jack Colledge | 0'0" (0 m) |
150 lbs (68.04 kg) |
One MMA Academy | |
|
Jack Lledo | 5'10" (1.78 m) |
170 lbs (77.11 kg) |
ONE Academy | |
|
Jae Hun Kim | "Yakuza" | 5'11" (1.8 m) |
325 lbs (147.42 kg) |
Team ONE |
|
Jai Santos | "Tasmanian Devil" | 5'4" (1.63 m) |
135 lbs (61.23 kg) |
One Hit MMA / Victory MMA |
|
Jailson Maestri | 0'0" (0 m) |
155 lbs (70.31 kg) |
Open One | |
|
James Prescott | 0'0" (0 m) |
185 lbs (83.91 kg) |
One Hit MMA | |
|
Jamie Calloway | 5'9" (1.75 m) |
145 lbs (65.77 kg) |
Force of One | |
|
Jared Ulat | 5'9" (1.75 m) |
135 lbs (61.23 kg) |
One Kicks Gym | |
