Is this the fastest KO in MMA heavyweight history?
Heavyweights tend to attract bigger fans simply for the reason that the chance for a knockout is great with two huge athletes. Today the British promotion UCMMA published this fight video, claiming it to the best fastest knockout in the history of MMA's heavyweight division:
I can't off the top of my head think of a faster knockout, so I believe this is definitely a tough one to beat. UCMMA 39 took place May 3rd in London, England.