Conor McGregor
Stipe Miocic
Stat by stat
Bars are scaled to the leader in this list.
The verdict
Dead even across the measured categories. Our all-time ranking places Conor McGregor at #11 and Stipe Miocic at #12.
Head-to-head FAQ
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The case for Conor McGregor
The biggest star the sport has ever produced, McGregor changed MMA's economics and reach while backing it up in the cage during his prime. He became the first fighter to hold two UFC titles simultaneously, knocking out featherweight king José Aldo in a record 13 seconds at UFC 194 in 2015 and stopping Eddie Alvarez for the lightweight belt at UFC 205 in 2016. His left hand was one of the most feared weapons in the sport, and his self-promotion filled arenas and drove the two biggest pay-per-views in company history. He also crossed into boxing for a blockbuster loss to Floyd Mayweather in 2017. Injuries, inactivity and losses to Nate Diaz and Khabib Nurmagomedov, plus a leg break against Dustin Poirier in 2021, clouded his later years. He sits around 22-6, but his peak dominance and cultural impact are undeniable.
The case for Stipe Miocic
The most accomplished heavyweight in UFC history, Miocic set the record for most consecutive successful heavyweight title defenses with three, a mark that stood alone in the sport's most volatile division. A working firefighter and paramedic, he won the title by knocking out Fabricio Werdum in Brazil at UFC 198 in 2016, then defended against Alistair Overeem, Junior dos Santos and Francis Ngannou. After dropping the belt to Daniel Cormier he reclaimed it in their 2019 rematch at UFC 241, avenging the loss. Built on crisp boxing, an underrated clinch and championship-round cardio, his reign gave heavyweight a rare stretch of stability. His career sits around 20-5, with the closing chapters — a knockout loss to Ngannou in 2021 and a stoppage by Jon Jones at UFC 309 in 2024 — coming against two of the hardest hitters the division has ever seen.