UFC 23: Ultimate Japan 2

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 Fight Night 128: Barboza vs. Lee was a mixed martial arts event produced by the Ultimate Fighting Championship that was held on April 21, 2018, at Boardwalk Hall in Atlantic City, New Jersey. A lightweight bout between Edson Barboza and former interim UFC Lightweight Championship challenger Kevin Lee served as the event headliner.

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 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 129: Maia vs. Usman was a mixed martial arts event produced by the Ultimate Fighting Championship that was held on May 19, 2018, at Movistar Arena in Santiago, Chile. A welterweight bout between Kamaru Usman and Demian Maia served as the event headliner.

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.

UFC 227: Dillashaw vs. Garbrandt 2 is an MMA event produced by the Ultimate Fighting Championship held on August 4, 2018, at the Staples Center in Los Angeles, California.

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 on Fox 30: Alvarez vs. Poirier 2 was a mixed martial arts event produced by the Ultimate Fighting Championship held on July 28, 2018 at the Scotiabank Saddledome in Calgary, Alberta, Canada. A lightweight rematch between former two-time Bellator Lightweight Champion and former UFC Lightweight Champion Eddie Alvarez and Dustin Poirier was the main event of the card. Their first bout at UFC 211 in May 2017 was ruled a no contest after Alvarez hit a downed Poirier with illegal knees in the second round.

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 135: Gaethje vs. Vick was a mixed martial arts event produced by the Ultimate Fighting Championship that was held on August 25, 2018 at Pinnacle Bank Arena in Lincoln, Nebraska, United States. A lightweight bout between former WSOF Lightweight Champion Justin Gaethje and James Vick served as the event headliner.

UFC Fight Night 137: Santos vs. Anders was a mixed martial arts event produced by the Ultimate Fighting Championship held on September 22, 2018 at Ginásio do Ibirapuera in São Paulo, Brazil. A light heavyweight bout between former UFC Light Heavyweight Championship challenger Glover Teixeira and Jimi Manuwa was expected to serve as the event headliner. However, Teixeira pulled out on August 14 due to a shoulder injury. He was replaced by Thiago Santos. In turn, Manuwa pulled out on September 16 due to a torn hamstring and was replaced by Eryk Anders.

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 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 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 230: Cormier vs. Lewis is a mixed martial arts event produced by the Ultimate Fighting Championship held on November 3, 2018 at Madison Square Garden in New York City, New York.