On March 7, Reinier de Ridder walks into UFC 326 to face Caio Borralho. It’s a crucial bout for the former two-division ONE Championship king, especially after suffering a fourth-round TKO loss to Brendan Allen in late 2025. At 35, every fight matters. Every adjustment counts.

But beyond rankings and records, fans often ask a simpler question: who is Reinier de Ridder outside the cage? Where does “The Dutch Knight” come from? And what shaped the calm, methodical grappler we see on fight night? Let’s start with his roots.

What is Reinier de Ridder’s ethnicity and nationality?

Reinier de Ridder was born on September 7, 1990, in Tilburg, a city in the southern province of North Brabant in the Netherlands. Known for its rich culture and strong sports heritage, Tilburg had over 229,000 residents in 2024, making it the seventh-largest city in the country.

“I’m a Dutch-made man. I had a really nice childhood,” De Ridder told ONE FC back in 2020. “I grew up in a small place just outside Tilburg and, like a lot of Dutch cities, there were a lot of good possibilities.”

Tilburg is home to Tilburg University and several other major academic institutions, but for De Ridder, the city’s real classroom was the gym. Its mix of urban life and close-knit neighborhoods gave him structure, something that would later translate into the discipline required to become one of the sport’s most efficient grapplers.

He now fights out of Breda, Netherlands, but Tilburg will always remain the heart of his story, the place where he first learned to fight, to balance humility with ambition, and to dream of something greater.

Is Reinier de Ridder Christian?

As for his religion, there is no information available as the Dutch fighter hasn’t spoken about his faith or beliefs publicly. However, he has revealed that he didn’t have a classic rags-to-riches kind of story. Instead, he had a pretty decent time growing up.

“I didn’t have a rough childhood and I never had to defend myself on the streets. It was just a good sport to do,” Reinier de Ridder once said. “It was a hobby, a good way to train, and something I always really enjoyed. It never got really far. I won some regional titles in judo, but nothing major. Everything just started to click with Brazilian Jiu-Jitsu and mixed martial arts later in life.”

While their names are not known to the public, it’s well known that De Ridder’s father was a taxi driver, while his mother was a civil servant. Growing up in Tilburg created a lot of opportunities for ‘The Dutch Knight’. Even though he was academically strong, he didn’t like sitting and studying at school. Instead, his mind and energy were focused on athletics. He admitted that he would usually go out to play football in the fields instead of studying.

Yet, the lessons learned from a childhood spent on the mats became part of his identity as a fighter. Now, even as one of the UFC’s elite, De Ridder stays true to those values. Outside the cage, he co-owns a physical therapy clinic in Breda, balancing medical work with training.

Reinier De Ridder’s martial arts journey began with judo at the age of 5, where he later earned a black belt in his teens. The art taught him balance, leverage, and humility, values that shaped his approach to combat and life. Soon, he traversed the land of Brazilian Jiu-Jitsu and found it to be life-changing. After all, he won medals at the European BJJ Championship in 2016 and 2017. With 2 silver medals on his neck, De Ridder found his way to ONE Championship, and the rest is history. And if history is any indication, “The Dutch Knight” isn’t done carving his legacy just yet!