"Champ-champ" is the UFC's informal term for a fighter who holds championship belts in two different weight divisions at the same time. It is not the same as simply winning a title in a second weight class — that has happened more often. Being champ-champ means both belts sit with the same fighter simultaneously, and in the UFC's history, only four fighters have managed it: Conor McGregor, Daniel Cormier, Amanda Nunes, and Henry Cejudo.

The Difference Between "Two-Division Champion" and "Champ-Champ"

A fighter can win a title in one division, lose or vacate it later, move up or down in weight, and eventually win a title in a second division. That fighter becomes a two-division champion, but never technically champ-champ, because they never held both belts at once. Several UFC champions have done this across the promotion's history.

Champ-champ is narrower. It requires winning a second title while still holding the first, so that for some stretch of time — sometimes months, sometimes just a couple of weeks — one person's name sits on two divisions' record books at the same time. That overlap is what makes it rare: a champion normally has to vacate or get stripped of one belt fairly quickly, because defending two divisions on an ongoing basis is not realistic.

The Four Fighters Who Have Done It

Conor McGregor was first. He knocked out Jose Aldo to win the featherweight title at UFC 194 in December 2015, then moved up and stopped Eddie Alvarez to win the lightweight title at UFC 205 in November 2016. He held both belts at once for about two weeks before the UFC stripped him of the featherweight title, in part to keep that division moving since he had no plans to defend it.

Daniel Cormier was second. He had held the light heavyweight title since 2015, then knocked out Stipe Miocic to win the heavyweight title at UFC 226 in July 2018. Rather than get stripped, Cormier relinquished the light heavyweight belt on his own terms ahead of UFC 232 that December, staying on as heavyweight champion alone.

Amanda Nunes was third, and the only woman to reach champ-champ status. She already held the bantamweight title when she beat Cristiane "Cyborg" Justino for the featherweight title in December 2018. Unlike the others, Nunes kept both belts for years and actually defended each of them while holding the other, rather than vacating one soon after winning it. She gave up both titles only when she retired in 2023.

Henry Cejudo was fourth. He was flyweight champion when he beat Marlon Moraes for the bantamweight title at UFC 238 in June 2019. He kept the flyweight belt briefly before vacating it to focus on bantamweight, where he stayed champion until his own retirement in 2020.

Why It Almost Never Happens

Winning one UFC title takes beating the best fighter in a division that trains specifically for that weight. Doing it in a second division means doing that again against a completely different pool of opponents, often with different size, reach, and strength than the fighter is used to facing.

Cutting or maintaining weight for a second division also has real costs. A fighter who moves up finds bigger opponents; a fighter who moves down has to cut harder and recover faster than the rest of that division has to. Either way, staying sharp enough to beat two full sets of contenders back to back is a much taller order than beating one.

There's also a practical, non-athletic reason double titles rarely last: the UFC generally wants its champions active and defending their belts, not sitting on one while chasing another challenge. That pressure is part of why three of the four champ-champs above gave up one belt within months of winning the second.

What Happens to the Old Belt

When a fighter becomes champ-champ, the division they are stepping back from doesn't just wait around. The UFC typically wants that title actively defended, so the fighter either vacates it directly, as Cormier did, or gets stripped of it if they show no plan to defend it, as happened to McGregor. Once that happens, the promotion books a new title fight to fill the vacancy, and the division moves on with a fresh champion.

The exception is Nunes, who defended both belts rather than immediately giving one up — which is part of why her run is usually described as the most complete example of the four.

Is Anyone Champ-Champ Right Now?

As of this writing, no UFC fighter holds two divisional titles at the same time. Champions occasionally move up or down in weight and add a second title later, becoming two-division champions in the process, but that is a different and more common accomplishment than holding both belts simultaneously. Islam Makhachev, for example, built his reputation as a long-reigning lightweight champion before moving up and winning the welterweight title — a notable multi-division résumé, but not a champ-champ run, since he no longer held the lightweight belt by the time he won the second one.

The Takeaway

Champ-champ status is one of the hardest individual accomplishments in the sport specifically because it demands doing something twice, in two different divisions, without a break in between: winning a UFC title while still holding another one. Only four fighters have done it, and three of the four gave up one of the belts within months. When you hear a broadcast use the term, it's worth checking whether the fighter actually holds both belts right now, or whether they're being credited more loosely as a "two-division champion" for titles won at different points in their career — the two claims sound similar but describe very different feats.