2. Georges St. Pierre | UFC Welterweight -- 2,064 Days
The popular Canadian has his detractors, but no one can argue with his results. Following a shocking knockout loss to Matt Serra at UFC 69, St. Pierre made the necessary corrections and never again tasted defeat.
St. Pierre’s last successful title defense came in a split decision over Johny Hendricks at UFC 167 on Nov. 16, 2013. Shortly after, he announced he was vacating the championship to take a break from mixed martial arts. To this day, St. Pierre remains on the sidelines, even as rumors swirl about his possible return.
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