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Waldo Cortes-Acosta of the Dominican Republic punches Shamil Gaziev of Russia in a heavyweight fight during the UFC Fight Night event at ABHA Arena on November 22, 2025 in Doha, Qatar. (Photo by Jeff Bottari/Zuffa LLC)
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Waldo Cortes Acosta | No Slowing Down

Breakout Heavyweight Eyes Active 2026 Following UFC 324 Clash With Derrick Lewis

It feels like we saw two different versions of Waldo Cortes Acosta in 2025. The first earned wins over Ryan Spann and Serghei Spivac before dropping a unanimous decision to Sergei Pavlovich in August, and the second posted a pair of first-round knockout wins over Ante Delija and Shamil Gaziev in November.

“After that loss (to Pavlovich), I feel like I can (have success) because I lost the fight being a warrior,” Dominican heavyweight said following the UFC 324 press conference earlier. “I finished the third round hard, and I saw before that he knocked out almost half the division.

“I trust (myself) more after that fight.”

Although that may sound curious to some, it makes a great deal of sense when you stop and take a more nuanced, detailed look at Cortes Acosta’s UFC tenure.

Waldo Cortes-Acosta of the Dominican Republic punches Shamil Gaziev of Russia in a heavyweight fight during the UFC Fight Night event at ABHA Arena on November 22, 2025 in Doha, Qatar. (Photo by Jeff Bottari/Zuffa LLC)
Waldo Cortes-Acosta of the Dominican Republic punches Shamil Gaziev of Russia in a heavyweight fight during the UFC Fight Night event at ABHA Arena on November 22, 2025 in Doha, Qatar. (Photo by Jeff Bottari/Zuffa LLC)

He turned up on Season 6 of Dana White’s Contender Series having won all six of his professional contests while claiming the LFA heavyweight title with a third-round stoppage win over Thomas Petersen. He blew through Danilo Suzart in less than a round to earn his spot on the roster, then won his first two bouts inside the Octagon before getting in over his head a little in an April 2023 matchup with Brazilian veteran Marcos Rogerio de Lima.

It was his ninth fight in two years and his first against a seasoned veteran, and like many neophytes, he stumbled. But Cortes Acosta picked himself up and got straight back to work, posting victories over Lukasz Brzeski, Andrei Arlovksi, and Robelis Despaigne to send him into 2025 on a 3-fight winning streak.

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Falling to Pavlovich but fighting was another good, teachable moment for “Salsa Boy,” who turned into a different fighter midway through his chaotic encounter with Delija at the start of November.

 With just over 90 seconds remaining the first round, the fight looked like it was stopped and the Croatian was victorious, but that wasn’t the case. Referee Mark Smith called time as Cortes Acosta covered up along the fence, protecting his left eye. Delija celebrated with his corner, but the fight had been paused, not waved off, as doctors checked on his foe.

Waldo Cortes Acosta Octagon Interview | UFC Qatar
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Waldo Cortes Acosta Octagon Interview | UFC Qatar
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Replays showed that Cortes Acosta was poked in the eye, and to the surprise of just about everyone, the bout was restarted following an extended break in the action. Less than 30 seconds later, Cortes Acosta detonated a right hand on Delija’s jaw, sending him crashing to the canvas, where the DWCS grad pounded out the finish.

Three weeks later, he turned up in Qatar on Friday of fight week and made quick work of Gaziev, posting his second knockout win of the month.

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“I feel the old Waldo is back again,” he said. “I’m hungry and calm at the same time. I have the mentality that I need to knock them out as fast as I can.”

For the 34-year-old heavyweight, being expeditious with his efforts inside the Octagon feeds right into his desire and ability to stay active, which is born out of two different motivations.

Waldo Cortes-Acosta of the Dominican Republic punches Jared Vanderaa in a heavyweight fight during the UFC Fight Night event at UFC APEX on October 29, 2022 in Las Vegas, Nevada. (Photo by Jeff Bottari/Zuffa LLC)
Waldo Cortes-Acosta of the Dominican Republic punches Jared Vanderaa in a heavyweight fight during the UFC Fight Night event at UFC APEX on October 29, 2022 in Las Vegas, Nevada. (Photo by Jeff Bottari/Zuffa LLC)

“I’m born in the Dominican Republic. Over there, they’re warriors, and having my family here, my country watching me, I want to (bring pride) to my family, my country, all the people following me,” began Cortes Acosta, who is slated to face Derrick Lewis at UFC 324 on January 24.

“I feel every time I fight more frequently like that, I get more familiar with the (Octagon), more trust in my body, everything,” he added. “Everything is getting better when you’re fighting fast like that.”

The bout with Lewis stands as another measuring stick opportunity for the ascending heavyweight, who currently sits at No. 5 in the rankings, three places ahead of his veteran opponent.

While Cortes Acosta in higher up in the rankings, Lewis is the far more established of the two, owning 20 wins and a UFC record 16 knockouts over his dozen years competing in the Octagon. He has been and remains the dangerous, tenured foe most hopefuls need to pass in order to establish themselves as a legitimate contender.

Waldo Cortes Acosta punches Serghei Spivac in a heavyweight bout during the UFC 316 event at Prudential Center on June 07, 2025 in Newark, New Jersey. (Photo by Ed Mulholland/Zuffa LLC)
Waldo Cortes Acosta punches Serghei Spivac in a heavyweight bout during the UFC 316 event at Prudential Center on June 07, 2025 in Newark, New Jersey. (Photo by Ed Mulholland/Zuffa LLC)

“It means a lot for me because I remember before I started, I saw Derrick Lewis knocking out people,” he said. “Everybody around me liked him, and me being in the position to fight with him is a good opportunity for me to show up, make this fight good for everybody, and for me to knock him out.”

Dispatching Lewis to push his winning streak to three and add to the momentum he built in November feels like the kind of victory that would prompt others in that position to ease off the gas, survey the landscape, and seek out the fight that makes the most sense next, even if it meant taking a bit of a break.

But Cortes Acosta has no interest in slowing down.

“I need to be active; I don’t need to slow down,” he said. “I have people in front of me I can fight, and people behind too.

“I’m the person that people didn’t give me too much opportunity when I was behind, ranked 14 or something, but I can give opportunity to those people. I can fight and make the division better.”

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UFC 324: Gaethje vs Pimblett took place live from T-Mobile Arena in Las Vegas, Nevada on January 24, 2026. See the final Prelim & Main Card Results, Official Scorecards and Who Won Bonuses - and relive the action on UFC FIGHT PASS!