Answer
Khabib Nurmagomedov held the UFC Lightweight title for three years, from April 2018 to October 2020. During his reign, he successfully defended his title three times against Conor McGregor, Dustin Poirier, and Justin Gaethje. Nurmagomedov retired from MMA in October 2020 with an undefeated record of 29-0, cementing his legacy as one of the greatest fighters in UFC history.