The International Mixed Martial Arts Federation and Tuff-N-Uff present first-ever Amateur MMA World Championships starting Monday June 30 through to July 5 The IMMAF World Championships Take Place During UFC International Fight Week in Las Vegas The International Mixed Martial Arts Federation (IMMAF) in partnership with Las Vegas’ own Tuff-N-Uff: “The Future Stars of Mixed Martial Arts,” is presenting the first-ever amateur Mixed Martial Arts   World Championships  during UFC International Fight Week on Monday, June 30 to Saturday, July 5. The IMMAF selected Tuff-N-Uff to co-present this competition because of their excellent reputation and prominence in combat sports. The five-day   IMMAF World Championships   kicks off at the University of Nevada Las Vegas (UNLV) inside the Cox Pavilion on Monday, June 30. IMMAF Tickets are available now through   UNLVTickets.com   for $10 per adult and $7 for children (10 and older) per day Monday, June 30 –Thursday, July 3