| Fighter | Nickname | Height | Weight | Association | |
 |
Reyffor Jose Carrasquero | "Rey" | 0'0" (0 m) |
170 lbs (77.11 kg) |
Xtreme Couture |
|
Ricardo Hilario | 0'0" (0 m) |
145 lbs (65.77 kg) |
Samurai Xtreme | |
|
Richard Brooks | 5'10" (1.78 m) |
155 lbs (70.31 kg) |
Xtreme Couture | |
|
Rob Santos | 0'0" (0 m) |
135 lbs (61.23 kg) |
Xtreme Couture Toronto | |
|
Robert Villegas | 6'2" (1.88 m) |
205 lbs (92.99 kg) |
Xtreme MMA | |
|
Robert Fonseca | "Pato" | 5'11" (1.8 m) |
165 lbs (74.84 kg) |
Xtreme Couture |
|
Robert Corpora | 0'0" (0 m) |
188 lbs (85.28 kg) |
Xtreme Fitness | |
|
Robert Rende | 6'0" (1.83 m) |
144 lbs (65.32 kg) |
Xtreme Couture Toronto | |
|
Robin Black | 5'5" (1.65 m) |
135 lbs (61.23 kg) |
Xtreme Couture Toronto | |
|
Rocky Cantu | 6'0" (1.83 m) |
155 lbs (70.31 kg) |
Xtreme Couture | |
|
Rodney Rhoden | "The Bakersfield Kid" | 0'0" (0 m) |
145 lbs (65.77 kg) |
Xtreme Couture |
|
Rodney Rampersad | 5'5" (1.65 m) |
136 lbs (61.69 kg) |
Xtreme Couture | |
|
Rodrigo Artilheiro | 6'3" (1.91 m) |
255 lbs (115.67 kg) |
Xtreme Couture | |
|
Rodrigo Araujo de Oliveira | "Mumbuca" | 5'7" (1.7 m) |
145 lbs (65.77 kg) |
Instigacao Xtreme |
|
Rodrigo Araujo Silva | "Rodrigao" | 6'0" (1.83 m) |
205 lbs (92.99 kg) |
Instigacao Xtreme |
|
Rodrigo Sanchez | 0'0" (0 m) |
155 lbs (70.31 kg) |
Xtreme Combat | |
|
Roger Chumpitaz | 0'0" (0 m) |
170 lbs (77.11 kg) |
Xtreme Combat | |
|
Roman Isbell | "Baby Face Assassin" | 5'8" (1.73 m) |
145 lbs (65.77 kg) |
Xtreme Couture |
|
Roman Dolidze | "The Caucasian" | 6'3" (1.91 m) |
185 lbs (83.91 kg) |
Xtreme Couture |
|
Ronnie Jones | 5'9" (1.75 m) |
135 lbs (61.23 kg) |
Xtreme Couture | |
