UFC: 5 fighters with the most losses inside the Octagon 

=2 Frank Mir (11 losses)

The former UFC Champion has also lost plenty of times inside the Octagon

Frank Mir was once one of the best MMA fighters in the world and reigned as UFC Heavyweight Champion in the mid-2000s and was famous for being the first fighter to ever defeat WWE/MMA crossover star, Brock Lesnar inside the Octagon.

Despite his huge amount of victories over legendary performers inside UFC such as Lesnar, Tim Sylvia, Tank Abbott, Mirko Cro-Cop and most impressively, Antonio Rodrigo Nogueira on two separate occasions, Mir has tasted a large number of defeats also across his 14 years working for the promotion.

Mir has also racked up a sizeable 11 defeats.

His first loss was an upset defeat to journeyman Ian Freeman, but losses to the likes of Lesnar, Shane Carwin and Junior Dos Santos were no disgrace.

However, Mir's days as a top line fighter were clearly behind him when he lost six of his final eight fights for the promotion.