#2 Georges St. Pierre
Another UFC fighter who retired this year, Georges St. Pierre is recognized as being one of the top fighters to have ever entered a UFC Octagon. His time in the UFC is seen to be almost faultless and many consider him to be the best MMA fighter ever.
He has held both the Middleweight and Welterweight UFC Championships over the course of his career in the Octagon. He was the UFC Welterweight Champion thrice and held the title for 6 years in total, which is the second-longest combined reign in UFC history.
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Pierre, unlike others in this list, earned most of his fortune through the 14 pay-per-view fights that he competed in during his time in UFC. It should be noted that he also had several paid endorsement deals with Bacardi, Nos energy drink, Electronic Arts, and others.
GSP announced that he was retiring this year after a prospective fight between himself and UFC Lightweight Champion Khabib Nurmagomedov fell through. There have been hints that he might return to the Octagon again in the future for one more fight if everything aligns. Due to the success of his career, he has accumulated a total net worth of $30 Million.
GSP (Georges St. Pierre) Net Worth: $30 Million.