Allan Nascimento was a UFC flyweight fighter from São Paulo, Brazil. He died on August 3, 2026, found unresponsive in his sleep after an apparent heart attack. He was 34 years old. His last fight had taken place six weeks earlier, in Las Vegas. He lost a split decision to Mitch Raposo on June 20 and flew home to Brazil. He never fought again.
What Was Allan Nascimento’s Nickname?
His nickname was “Puro Osso.” In Portuguese, that translates to Pure Bone. It fit. He was lean, precise, and built for the ground game. He carried the nickname throughout a professional career that started in 2011 and stretched across Brazil, Japan, and the United States.
What Was Allan Nascimento’s Fighting Style?
Nascimento was a Brazilian jiu-jitsu black belt and one of the more dangerous submission grapplers in the UFC flyweight division. Of his 22 professional wins, 16 came by submission. Opponents tended to survive the first round with their limbs intact and consider that a victory. He was not a big puncher. He was a patient, suffocating presence on the ground who waited for his moment and rarely missed it.
Across his entire professional career, he was never finished. Every one of his seven losses came by decision. Nobody stopped him.
How Did Allan Nascimento Get to the UFC?
His first shot at a UFC contract came in 2018 on Dana White’s Contender Series. He faced Raulian Paiva and lost a split decision. He did not get the call. Most fighters fold at that point. Nascimento went back to the regional circuit, fought in RIZIN and XFC, kept winning, and earned another opportunity. He made his official UFC debut in October 2021.
What Was Allan Nascimento’s UFC Record?
He went 4-2 across six UFC appearances. He lost his debut to Tagir Ulanbekov by split decision, then won four straight. He beat Jake Hadley, Carlos Hernandez, Jafel Filho, and Cody Durden. Two of those wins earned him Performance of the Night bonuses. His final fight was the split decision loss to Mitch Raposo on June 20, 2026.
His overall professional record was 22 wins and 7 losses.
What Did Allan Nascimento’s Teammates Say?
Nascimento trained at Chute Boxe Diego Lima in Brazil, the same team as former UFC lightweight champion Charles Oliveira. They were not just teammates. Oliveira worked Nascimento’s corner at UFC events, the kind of arrangement that only happens when trust runs deep.
After Nascimento’s death, Oliveira posted a tribute. “Today I lost a brother that fighting gave me,” Oliveira wrote. “Thank you forever for sharing the mats, the training, and everything we’ve been through together. I have nothing but gratitude for having you by my side, brother — in training, in our corner, and in all the moments we shared. I love you, man. You were an incredible guy. I can’t believe it. You will be missed a lot.”
Fellow UFC fighter and teammate Daniel Willycat Santos posted a tribute reel. “Proud of everything you have built and conquered,” Willycat wrote.
How Did Allan Nascimento Die?
The UFC released a statement on August 3, 2026. According to the organization, Nascimento “was found unresponsive after suffering an apparent heart attack in his sleep.” Medical responders attended but could not revive him. He was pronounced dead at the scene. He was 34 years old.
When Was Allan Nascimento’s Funeral?
Allan Nascimento’s funeral was held on August 5, 2026, in Brazil. Teammates posted from the service. “Go with God my brother, I love you,” the caption read.
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