The welterweight division in mixed martial arts contains different weight classes:
Weight classes are divisions of competition used to match competitors against others of their own size.
Mixed martial arts is a mix of different styles of martial arts.
Thurman vs. Garcia: Future of the Welterweight Division | SHOWTIME Boxing by SHOWTIME Sports
The UFC's welterweight division, which groups competitors within 156 to 170 lb
Berto vs. Porter: Welterweight Title Eliminator | April 22 on SHOWTIME by SHOWTIME Sports
Shooto's welterweight class, for competitors between 145 and 155 lb
Shooto is a combat sport/mixed martial arts system and mixed martial arts organization that is governed by the Shooto Association and the International Shooto Commission.
ONE Championship's welterweight limits between 171 and 185 lb
ONE Championship is a Singapore-based mixed martial arts promotion which was launched on 14 July 2011 by multimillionaire entrepreneur Chatri Sityodtong and former ESPN Star Sports senior executive Victor Cui.