Watch Free Online HD Moviesjoy. For 16 years, the Ultimate Fighting Championship has been the gold standard in combat sports. Now you can re-live the 100 greatest fights in UFC history with this exciting countdown show. Featuring all the greats of the Octagon, from Royce Gracie and Chuck Liddell to Matt Hughes and Randy Couture, this five episode special has the most dramatic, explosive, and memorable battles of the UFC from 100 down to the greatest UFC fight of all time. RUNTIME: 26 Hours and 40 Minutes