Khabib Nurmagomedov and Conor McGregor met once, at UFC 229 in Las Vegas on 6 October 2018, when Khabib kept the lightweight title with a fourth-round submission. Khabib retired unbeaten at 29–0 after his final fight in October 2020. McGregor, the UFC’s first simultaneous two-division champion, returned in July 2026 and lost to Max Holloway at UFC 329 after injuring his knee in the first round.
One built his case on a perfect record, the other on two-weight titles and the biggest pay-per-view numbers in the sport’s history. Now the world votes.