Khabib Nurmagomedov vs. Conor McGregor headlined UFC 229.
UFC 229: Khabib vs. McGregor took place on October 6, 2018, at T-Mobile Arena in Paradise, Nevada. The main event was a UFC Lightweight Championship fight between Nurmagomedov, the undefeated reigning champion, and McGregor, a former two-division UFC champion returning to the lightweight spotlight.
Nurmagomedov won by fourth-round submission after controlling McGregor with takedowns, top pressure, and ground attacks. The fight became one of the most commercially successful events in UFC history, but the post-fight melee—during which Nurmagomedov climbed out of the cage—also dominated the headlines. Nevada regulators later suspended and fined participants.
The alternative event numbers can be tempting because several were major Khabib or McGregor cards. UFC 205 featured McGregor against Eddie Alvarez, UFC 242 featured Nurmagomedov against Dustin Poirier, and UFC 254 featured Nurmagomedov against Justin Gaethje. None paired Nurmagomedov with McGregor.