It's one of the most repeated questions among combat sports fans. Two athletes train for months, risk their health for an entire career, and fill stadiums around the world. However, when it comes time to cash in, the difference between a top-level boxer and a star of the UFC can be abysmal.
The short answer is simple: great boxers make a lot more money than fighters from MMA.
But understanding why it happens requires analyzing how each industry works.
The UFC is a company with a very centralized structure. Wrestlers sign exclusive contracts with the organization and their purses depend on the position they occupy within the company, their ability to sell events and individual negotiations. For years, the most common entry contract for a debutant has been around the well-known format of $12,000 for fighting and an additional $12,000 in case of victory, the popular "12+12". Although some debutants sign slightly higher agreements, that figure still represents the economic reality of many fighters who come to the company. After paying taxes, trainers, gym, manager, physical preparation, nutrition and travel, the money that finally reaches the fighter's pocket can be reduced very significantly.
In professional boxing the situation is completely different.
There is no single company that controls the market. There are different promoters competing with each other, multiple bodies that sanction championships and greater freedom to negotiate contracts. This competition means that the big stars can obtain much higher purses and keep a considerably higher percentage of the income generated by each event.
Even in intermediate categories the difference is usually remarkable.
A consolidated professional boxer, capable of starring in national or international evenings without being a world champion, can negotiate purses much higher than those of an equivalent fighter within the UFC. At the same time, in boxing there is also a huge base of athletes who earn very little, so the difference shoots up especially when comparing the highest levels of both sports.
When talking about the big stars, the distance is even greater.
Floyd Mayweather made millionaire purses commonplace during the last stage of his career. His fights against Manny Pacquiao or Conor McGregor generated historic figures and brought him revenues that far exceeded one hundred million dollars in a single night. Canelo Alvarez has also signed some of the most lucrative contracts ever seen in combat sports and continues to top the lists of highest-paid athletes year after year.
In the UFC only a small group of names have managed to come close to those amounts.
Conor McGregor continues to be the great economic benchmark of mixed martial arts. Thanks to his ability to sell events, renegotiate contracts and generate additional income, he starred in the highest purses in the history of the organization. Even so, his greatest income came precisely when he crossed into boxing to face Floyd Mayweather, a fight that eclipsed any amount previously obtained within the UFC.
Other historical champions such as Jon Jones, Israel Adesanya, Alex Pereira, Khabib Nurmagomedov or Georges St-Pierre also achieved millionaire incomes, but in general terms the figures are still far from the great nights of boxing.
Why is there such a big difference?
One of the main reasons is in the distribution of revenues.
Traditionally, elite boxers directly negotiate a very significant part of the money generated by ticket sales, audiovisual rights and sponsorships. In the UFC, the percentage allocated to fighters has historically been much lower, an aspect that has been generating debate among fans and fighters for years.
Bargaining power also plays a role.
A world boxing champion can listen to offers from several promoters before signing a fight. A fighter of the UFC, with few contractual exceptions, does not have that direct competition.
Sponsors represent another fundamental difference.
Although the UFC offers enormous global exposure, the organization controls much of the commercial image during official events. In boxing, big stars often enjoy much greater freedom to exploit individual deals with brands, sponsors and companies, significantly increasing their income outside the ring.
All this explains a paradox that attracts the attention of many fans.
The UFC has become probably the most recognizable combat sports organization on the planet and its events frequently break viewership records. However, boxing is still the place where the biggest stars get the highest purses.
That doesn't mean that all boxers earn more than all fighters in MMA. In fact, many fighters in the UFC are paid more than thousands of professional boxers who develop their careers on regional circuits.
The difference appears when you look at the elite.
At that level, boxing's economic ceiling continues to be much higher.
And that reality explains why so many UFC champions have talked about trying their luck in a ring. It's not just about sporting prestige. It's also about an economic opportunity that, in most cases, is impossible to match within mixed martial arts.