Lesnar has only ever had 2 good fights
Brock Lesnar has only ever fought well in the UFC twice, that’s it. Those 2 fights were UFC 87 vs Heath Herring, and UFC 100 vs Frank Mir. Other than those 2 fights there is nothing that Brock Lesnar ever did that was impressive.
His other fights consisted of him being absolutely embarrassed by Cain Velasquez and Alistair Overeem, a KO win over a man who he outweighed by probably 80lbs and would later fight at middleweight (Randy Couture), and a win over Shane Carwin after Carwin gassed himself out in the 1st round pummelling Lesnar and had no gas left for the 2nd round.
Looking at Brock Lesnar’s MMA resume it becomes clear that there is not enough evidence to convict him of being a good fighter, and that is one of the many reasons he will lose to Mark Hunt at UFC 200.