Who's the toughest in the house? The Ultimate Fighter finds out as mixed martial arts fighters battle it out for a six-figure UFC contract. With two of the top UFC fighters as coaches, contestants will try to kick and punch their way to dominance and to prove who is The Ultimate Fighter.

UFC Fight Night is a part of the Ultimate Fighting Championship (UFC) which is the largest mixed martial arts promotion company in the world featuring most of the top-ranked fighters in the sport. Based in the United States, the UFC produces events worldwide. The organization showcases nine weight divisions and abides by the Unified Rules of Mixed Martial Arts. The UFC has held over 300 events to date. Dana White serves as the president of the UFC while brothers Frank and Lorenzo Fertitta control the UFC's parent company, Zuffa, LLC. The first UFC event was held on November 12, 1993 at the McNichols Sports Arena in Denver, Colorado. The purpose of the early UFC competitions was to identify the most effective martial art in a real fight between competitors of different fighting disciplines, including boxing, Brazilian jiu-jitsu, Sambo, wrestling, Muay Thai, karate, judo, and other styles. In subsequent competitions, fighters began adopting effective techniques from more than one discipline, which indirectly helped create an entirely separate style of fighting known as present-day mixed martial arts.

The fastest growing sports organization in the world, the Ultimate Fighting Championship® (UFC®), started in 1993 as a professional mixed martial arts (MMA) organization. UFC has revolutionized the fight business, and today stands as the world's leading MMA promoter, offering the premier series of MMA sports events that have sold out some of the biggest arenas and stadiums across the globe.

Televised undercard bouts from UFC Pay-Per-Views and UFC Fight Nights exclusively on UFC Fight Pass.

HBO Boxing is an American sports television series that premiered on 22 January 1973 and that has shown a number of significant boxing events since then. WCB's first event ever was fought in Kingston, Jamaica, where George Foreman defeated Joe Frazier in two rounds to win the world heavyweight championship. The main broadcast team is Jim Lampley on blow-by-blow, with former ESPN reporter Max Kellerman as color commentator, replacing Larry Merchant, who retired in December 2012. For the last two years of Merchant's contract he and Kellerman alternated telecasts.

Cage Fury Fighting Championships (CFFC) is an American mixed martial arts (MMA) promotion. Founded by Felix and Amy Martinez, it promoted in Atlantic City, New Jersey. The last-minute cancellation of its sixth event (second pay-per-view) in 2007 signaled its temporary demise; however, it resurfaced nearly four years later. CFFC featured many Ultimate Fighting Championship (UFC) veterans, including fight commentator Dan Severn, as well as appearances by Evan Tanner, Kimbo Slice, Frank Shamrock, and Homer Moore. A number of former champions (Carmelo Marrero, Jim Miller, and Dan Miller) have appeared or currently appear in the UFC.

The critically acclaimed SHOWTIME boxing series, Showtime Championship Boxing features young, talented contenders matched tough with a philosophy of competitive fights featuring the next generation of boxing stars that provide a proving ground for prospects determined to fight for a world title. 

Bellator MMA Live (formerly known as Bellator Fighting Championships) is a mixed martial arts (MMA) promotion in the USA. Bellator was founded in 2008 by Chairman & CEO Bjorn Rebney. Bellator features "The Toughest Tournament in Sports", which has a single-elimination format that awards the winner of each eight-person or four-person tournament a check for $100,000 and a guaranteed world title fight against the current Bellator world champion in the applicable weight class.

Coverage of Bellator Kickboxing events.

Titan Fighting Championship is an American mixed martial arts promotion based out of Pompano Beach, FL. Their shows were originally run in and near Kansas City and have since expanded to include venues all over North America and eventually, international locations.