Jak Siemasz “Rex” joins USFMMA as an official’s member and has stepped into a role on the USFMMA Marketing Commission
Rex started his background in competition within amateur wrestling.
Rex has a Bachelor’s Degree in International Business from Lake Superior State University (2018) where he also served a role in the Investment Club and Treasurer of Marketing Club.
Rex has worked in marketing for both amateur and professional MMA as well as officiating sanctioned MMA bouts since 2013.
