UFC on Fox 25: Weidman vs Gastelum was a mixed martial arts event produced by the Ultimate Fighting Championship held on July 22, 2017 at the Nassau Veterans Memorial Coliseum in Uniondale, New York. The event was headlined by a middleweight bout between former UFC Middleweight Champion Chris Weidman and The Ultimate Fighter: Team Jones vs. Team Sonnen middleweight winner Kelvin Gastelum.[
UFC 223: Khabib vs. Iaquinta is a mixed martial arts event produced by the Ultimate Fighting Championship held on April 7, 2018, at the Barclays Center in Brooklyn, New York.
UFC 224: Nunes vs. Pennington is a mixed martial arts event produced by the Ultimate Fighting Championship held on May 12, 2018, at the Jeunesse Arena in Rio de Janeiro, Brazil.
UFC Fight Night 127: Werdum vs. Volkov was a mixed martial arts event produced by the Ultimate Fighting Championship that was held on March 17, 2018, at The O2 Arena in London, England. A heavyweight bout between former UFC Heavyweight Champion Fabrício Werdum and former Bellator Heavyweight Champion Alexander Volkov headlined this event.
UFC 220: Miocic vs. Ngannou is a mixed martial arts event produced by the Ultimate Fighting Championship held on January 20, 2018 at TD Garden in Boston, Massachusetts.
UFC 222: Cyborg vs. Kunitskaya is a mixed martial arts event produced by the Ultimate Fighting Championship held on March 3, 2018, at the T-Mobile Arena in Paradise, Nevada, part of the Las Vegas metropolitan area.
UFC Fight Night 126: Cowboy vs. Medeiros was a mixed martial arts event produced by the Ultimate Fighting Championship that was held on February 18, 2018, at Frank Erwin Center in Austin, Texas, United States. A welterweight bout between former UFC Lightweight Championship challenger Donald Cerrone and Yancy Medeiros served as the event headliner.
UFC on Fox 28: Emmett vs. Stephens was a mixed martial arts event produced by the Ultimate Fighting Championship held on February 24, 2018, at Amway Center in Orlando, Florida, United States. The event was headlined by a featherweight bout between Josh Emmett and Jeremy Stephens.
UFC on Fox 29: Poirier vs. Gaethje was a mixed martial arts event produced by the Ultimate Fighting Championship that was held on April 14, 2018, at the Gila River Arena in Glendale, Arizona. The event was headlined by a lightweight bout between Dustin Poirier and former WSOF Lightweight Champion Justin Gaethje.
UFC 226: Miocic vs. Cormier is a mixed martial arts event produced by the Ultimate Fighting Championship held on July 7, 2018, at the T-Mobile Arena in Paradise, Nevada, part of the Las Vegas metropolitan area.
UFC Fight Night 133: dos Santos vs. Ivanov was a mixed martial arts event produced by the Ultimate Fighting Championship that was held on July 14, 2018 at CenturyLink Arena in Boise, Idaho, United States. A heavyweight bout between former UFC Heavyweight Champion Junior dos Santos and former WSOF Heavyweight Champion Blagoy Ivanov served as the event headliner.
UFC Fight Night 134: Shogun vs. Smith was a mixed martial arts event produced by the Ultimate Fighting Championship held on July 22, 2018, at Barclaycard Arena in Hamburg, Germany. A light heavyweight bout between former UFC Light Heavyweight Champion Maurício Rua and Anthony Smith headlined the event.
UFC Fight Night 131: Rivera vs. Moraes was a mixed martial arts event produced by the Ultimate Fighting Championship that was held on June 1, 2018, at Adirondack Bank Center in Utica, New York. A bantamweight bout between Jimmie Rivera and former WSOF Bantamweight Champion Marlon Moraes served as the event headliner.
UFC 225: Whittaker vs. Romero 2 is an MMA event produced by the Ultimate Fighting Championship held on June 9, 2018, at the United Center in Chicago, Illinois.
UFC Fight Night 132: Cowboy vs. Edwards was a mixed martial arts event produced by the Ultimate Fighting Championship that was held on June 23, 2018, at Singapore Indoor Stadium in Kallang, Singapore. A welterweight bout between former UFC Lightweight Championship challenger Donald Cerrone and Leon Edwards headlined the event.
UFC Fight Night 136: Hunt vs. Oleinik was a mixed martial arts event produced by the Ultimate Fighting Championship held on September 15, 2018 at Olimpiyskiy Stadium in Moscow, Russia. The event marked the promotion's first visit to Russia. The UFC arranged to use half of the venue and used a modified seating configuration for the arena. While not officially announced, the promotion was initially targeting a heavyweight bout between former UFC Heavyweight Champion Fabrício Werdum and Aleksei Oleinik to serve as the main event. However, on May 22, Werdum was flagged for a potential USADA doping violation and his status moving forward became unknown. On July 19, the promotion announced that a bout between the 2001 K-1 World Grand Prix winner and former interim title challenger Mark Hunt and Oleinik would serve as the event headliner.
UFC 228: Woodley vs. Till is a mixed martial arts event produced by the Ultimate Fighting Championship held on September 8, 2018 at American Airlines Center in Dallas, Texas.
UFC 229: Khabib vs. McGregor is a mixed martial arts event produced by the Ultimate Fighting Championship be held on October 6, 2018 at T-Mobile Arena in Paradise, Nevada, part of the Las Vegas Metropolitan Area.
UFC Fight Night 130: Thompson vs. Till was a mixed martial arts event produced by the UFC that was held on May 27, 2018, at the Echo Arena in Liverpool, England. A welterweight bout between former UFC Welterweight Championship challenger Stephen Thompson and Darren Till headlined the event.
The Ultimate Fighting Championship (later renamed UFC 1: The Beginning) was the first mixed martial arts event by the Ultimate Fighting Championship (UFC), held at the McNichols Sports Arena in Denver, Colorado, United States, on November 12, 1993. The tournament featured fights with no weight classes, rounds, or judges. The three rules – no biting, no eye gouging, and no groin shots – were to be enforced only by a $1,500 fine. The match only ended by submission, knockout, or the fighter's corner throwing in the towel, although the referee stopped the first fight at 26 seconds.