#4 Win/loss record
Of course, both Roman Reigns and Brock Lesnar win more matches than they lose. This has been the case since they made their debut, and it will be the case going forward because WWE sees a lot of equity in both men.
Let's look at some numbers then. Brock Lesnar has a win percentage of 70.32%, having won 128 of his 182 matches, according to Pro Fight DB. Five of his matches have gone to draws. This is a very impressive number when you consider the longevity of the man.
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While he may not have wrestled as many matches and some of the other superstars on the roster, he's always been portrayed as a Beast, across the fifteen years that he's been with the company. Not all big men have been this protected this long. Just ask Big Show!
Here is yet another statistic that should astound you. Despite the fact that it's difficult to remember Roman Reigns taking too many pins, he has a lower win percentage than "The Beast Incarnate".
Reigns has only won 67.24% of his matches on the main roster. Of course, his record in NXT is significantly better, where he won 14 of his 15 matches!