Genki Sudo holds a notable win over an American mixed martial artist who has been a professional competitor since what year?
Nate Marquardt: Nathan Joel "Nate" Marquardt (born April 20, 1979) is an American mixed martial artist competing in the middleweight division of the Ultimate Fighting Championship. Nate Marquardt:  A professional competitor since 1999, he is a former Strikeforce Welterweight Champion and a three-time Pancrase Middleweight Champion.
i don't know