Brief Introduction of Reinier De Ridder
Reinier de Ridder, known by his moniker “The Dutch Knight,” is a Dutch professional mixed martial artist who has established himself as one of the most formidable grapplers in the sport. Born on September 7, 1990, he has competed in both the middleweight and light heavyweight divisions, achieving significant success in multiple promotions. De Ridder is particularly renowned for his exceptional skills in judo and Brazilian Jiu-Jitsu, in which he holds black belts. His career is highlighted by his reign as a two-division champion in ONE Championship, where he held both the middleweight and light heavyweight titles simultaneously, a feat achieved by only a select few in the organization’s history. After a dominant run in Asia, De Ridder transitioned to the Ultimate Fighting Championship (UFC) in 2024, where he has continued to showcase his elite submission skills against top-tier competition, further solidifying his reputation as a world-class martial artist.
Reinier De Ridder Overview
| Full Name | Reinier de Ridder |
| Date of Birth | September 7, 1990 |
| Age(as of 2025) | 35 |
| Birthplace | Tilburg, Netherlands |
| Profession | Professional Mixed Martial Artist, Physiotherapist |
| Husband/Wife | Information not publicly disclosed |
| Family | Father (Taxi Driver), Mother (Civil Servant) |
| Relationship/Affairs(GF/BF) | Married |
| Net Worth | Approximately $700,000 to $1.9 million |
Early Life and Education of Reinier De Ridder
Reinier de Ridder was born in Tilburg, a city in the southern Netherlands, on September 7, 1990. He had a stable upbringing in a small town just outside of Tilburg, describing his childhood as pleasant and not marked by hardship. His father worked as a taxi driver, and his mother was a civil servant. From a very young age, De Ridder was drawn to martial arts, beginning his journey with judo at the age of six. His dedication to the discipline was evident as he earned his black belt in judo during his teenage years. Although he was academically capable, De Ridder’s true passion lay in athletics. He would often prioritize playing football over his studies. His early immersion in judo laid a strong foundation for his future career in mixed martial arts. After high school, he pursued higher education and earned a degree in physiotherapy. He has since co-owned a physiotherapy clinic in Breda, balancing his medical work with his demanding training schedule. This dual career path highlights a disciplined and multifaceted personality, capable of excelling in both academic and athletic pursuits.
Reinier De Ridder’s Career
Reinier de Ridder’s professional mixed martial arts career began in 2013, and he quickly made a name for himself with his exceptional grappling prowess. He amassed an impressive undefeated record in his early career, finishing all of his opponents. This successful run led him to capture the HIT Middleweight Championship. His dominant performances on the European circuit caught the attention of major international promotions, including the UFC and ONE Championship. De Ridder ultimately chose to sign with ONE Championship, citing better terms.
De Ridder made his ONE Championship debut in January 2019, securing a first-round submission victory over Fan Rong. He continued his winning ways with a second-round knockout of Gilberto Galvao and a hard-fought decision win against Leandro Ataides. These victories propelled him into title contention. In October 2020, De Ridder challenged the reigning ONE Middleweight World Champion, Aung La Nsang. In a stunning performance, he submitted the champion in the first round to claim the title.
Not content with one championship belt, De Ridder stepped up on short notice to challenge Aung La Nsang for the ONE Light Heavyweight World Championship in April 2021. He once again emerged victorious, winning by unanimous decision to become a two-division champion, the third in ONE history. He successfully defended his middleweight title against Kiamrian Abbasov with a third-round submission in February 2022 and against Vitaly Bigdash with a first-round inverted triangle choke in July 2022, earning Performance of the Night bonuses for both fights. His undefeated streak came to an end in December 2022 when he lost his light heavyweight title to Anatoly Malykhin via knockout. He also lost the middleweight title to Malykhin in a rematch in March 2024.
After parting ways with ONE Championship, De Ridder had a brief stint with UAE Warriors, where he secured a first-round TKO victory. In late 2024, “The Dutch Knight” signed with the Ultimate Fighting Championship (UFC). He made an immediate impact, submitting Gerald Meerschaert in his debut in November 2024. He followed this with a first-round submission of Kevin Holland in January 2025. In May 2025, he handed the highly-touted Bo Nickal his first professional loss with a second-round TKO, earning his first UFC Performance of the Night award. He continued his ascent up the middleweight ranks with a split decision victory over former champion Robert Whittaker in July 2025. His impressive run in the UFC was halted in October 2025 when he suffered a TKO loss to Brendan Allen.
Reinier De Ridder Personal Life & Family
Reinier de Ridder is a dedicated family man who prioritizes his life outside the octagon. He is married and a father to two children, a daughter and a son. De Ridder has structured his life in Breda, Netherlands, to ensure he remains close to his family, with his home, gym, and physiotherapy clinic all within a short distance of each other. He often speaks about the importance of being present for his children, taking his daughter to school and spending quality time with his son. He has expressed that while his fighting career is important, his role as a father and his relationship with his children are paramount. De Ridder encourages an active lifestyle for his children, who he says enjoy wrestling and play-fighting. In a move demonstrating his commitment to his career and family, De Ridder announced plans in 2025 to relocate his family to the United States to better focus on his UFC title aspirations. His wife is known to manage his social media accounts. There is no publicly available information regarding his religious beliefs.
Awards and Achievements of Reinier De Ridder
- ONE Middleweight World Championship (One time, with two successful defenses)
- ONE Light Heavyweight World Championship (One time)
- Third two-division champion in ONE Championship history
- UFC Performance of the Night (One time)
- HIT Fighting Championship Middleweight Championship (One time)
- 360 Promotion Middleweight Championship (One time)
- ONE Championship Submission of the Year (2020 vs. Aung La Nsang, 2022 vs. Vitaly Bigdash)
- ONE Championship Performance of the Night (Two times)
- Silver Medalist at the European Jiu-Jitsu Championship (2016, 2017)
Reinier De Ridder Net Worth and Income
As of 2025, Reinier De Ridder’s net worth is estimated to be between $700,000 and $1.9 million. His income is derived from multiple sources, including his earnings from professional fights, endorsement deals, and his co-ownership of a physiotherapy clinic in the Netherlands. During his time in ONE Championship, he was reportedly one of the higher-paid fighters, earning between $50,000 and $100,000 per fight. His initial UFC earnings were more modest, with a reported $12,000 for his debut and $18,000 for his second fight. However, with his subsequent high-profile wins, his fight purses are expected to have increased significantly. In addition to his fight earnings, De Ridder supplements his income with endorsement deals from various MMA apparel, supplement, and lifestyle brands, estimated to be worth between $100,000 and $200,000 annually.
Legacy and Influence
Reinier De Ridder’s legacy is firmly cemented as one of the most accomplished European mixed martial artists of his generation. His achievement of becoming a simultaneous two-division champion in a major global promotion like ONE Championship places him in an elite category of fighters. He is widely regarded as a submission specialist, with a high percentage of his victories coming by way of his grappling expertise. His transition to the UFC and subsequent victories over established names like Kevin Holland, Bo Nickal, and former champion Robert Whittaker demonstrated his ability to compete at the highest level of the sport. Beyond his accomplishments in the cage, De Ridder is also an influential figure through his dual role as a professional athlete and a practicing physiotherapist. This balance of a professional career outside of fighting is a source of inspiration and showcases a different path for aspiring martial artists. He co-owns the Combat Brothers gym in Breda, where he trains and coaches, contributing to the development of the next generation of fighters in the Netherlands.
Interesting Facts about Reinier De Ridder
- He began practicing judo at the age of six and is a black belt in the discipline.
- De Ridder also holds a black belt in Brazilian Jiu-Jitsu.
- He is a qualified physiotherapist and co-owns a clinic in Breda, Netherlands.
- Before his first professional loss in 2022, he was on a 16-fight winning streak.
- He became the third fighter in ONE Championship history to hold titles in two weight classes simultaneously.
- His wife helps manage his social media presence.
- He is known for his unorthodox and “goofy” fighting style, a label his wife informed him of.
Controversies
Reinier De Ridder has maintained a relatively controversy-free career. His public persona is generally that of a focused and respectful family man and athlete. There are no widely reported significant controversies associated with him.
Social Media Presence
- Instagram – Information not disclosed
- Twitter – Information not disclosed
- YouTube – Information not disclosed
Final Words about Reinier De Ridder
Reinier “The Dutch Knight” De Ridder has carved out a remarkable career in the world of mixed martial arts, defined by elite grappling and championship success. From his dominant run as a two-division champion in ONE Championship to his impactful arrival in the UFC, he has consistently proven his mettle against the best fighters in the world. His technical skill on the ground, combined with his physical attributes, makes him a threat to any opponent in the middleweight division. Off the mat, his dedication to his family and his profession as a physiotherapist paints a picture of a well-rounded and disciplined individual. As he continues his journey in the UFC, Reinier De Ridder remains a compelling figure in the sport, with his sights set on capturing the one major world title that has so far eluded him. His blend of a grounded personal life and extraordinary athletic achievements continues to make him a fan favorite and a respected competitor in the global MMA landscape.
