#5 Bryan Robinson: 113
The little-known Bryan Robinson has fought 113 times and the American Light Heavyweight is surprisingly just 34 years old.
The Iowa native has been in the fight game from a young age and has fought in many of the obscure companies of America. With a generic nickname "Hardcore", Robinson has 45 matches in the win column and 65 losses to his name, of which 55 are via submission.
An 8-fight losing streak has not dithered the 34-year-old from putting on the 7 oz gloves on a regular basis.