Last updated on: January 23, 2025

Dennis DeMars is known as the stepfather of Ronda Rousey, one of the most popular mixed martial artists and professional wrestlers. Ronda has achieved enormous fame, but Dennis has played a significant role in her life and success. This article shall tell you who Dennis DeMars is, his career, his role in Ronda’s life, and much more.

Quick Facts About Dennis DeMars

Early Life and Education

Dennis DeMars, an American, grew up with a strong interest in science and math. He worked diligently through school to obtain his Bachelor of Science in Physics and Mathematics from UCLA in 1978. He even did better by going back to UCLA to obtain a Master of Science in Physics in 1981. Dennis DeMars had a passion for learning that assisted him in his profession later on.

Professionellen Career

Dennis DeMars was a long-time and successful technologist. He spent nearly 30 years of his life at Hughes Aircraft Company. Hughes is a company famous for its high-tech products, such as satellites. Dennis DeMars was a senior developer who applied his knowledge in physics and mathematics to help the company grow. In 2011, Raytheon bought Hughes, and Dennis retired shortly after that. Even after retirement, Dennis continued to work on projects that he felt were important. Among them was his work with 7 Generation Games. It is a company that produces educational video games. He co-founded the company to help kids learn in fun ways.

Family Life of Dennis

Dennis DeMars is married to AnnMaria De Mars, Ronda Rousey’s mother. AnnMaria is a judoka who won the gold medal at the World Judo Championships in 1984. She was an excellent athlete, and her victory inspired Ronda to also practice judo. When Ronda’s biological father, Ron Rousey, died when Ronda was 8 years old, Dennis became a vital member of the family. AnnMaria moved the family to Southern California, where Dennis helped raise Ronda and her sisters.

Dennis and AnnMaria had four daughters, whom they both raised. Dennis was a very steady and supportive presence in their lives. He guided Ronda into the kind of strong and determined person that she is today.

Role of Dennis in the Life of Ronda

After the loss of her father, Ronda found strength in her relationship with Dennis. He was there to support her during tough times and helped shape her athletic career. Ronda often credits her family for teaching her important life lessons, and Dennis was a big part of that.

Ronda had started her journey with judo when Dennis became the first man she ever got into a tussle. Her mother and stepfather did much to assist Ronda become one of the best judokas by the time she started out early. Dennis remained a constant feature on Ronda’s side all the way, starting from when she began as a judo artiste until the success came later with MMA. He celebrated and assisted Ronda to cultivate mental strength necessary to emerge victorious in those matches.

READ ALSO: Ronda Rousey Net worth, Age, Husband, Family, Facts & More

Dennis’s Support for Ronda’s Career

Dennis was instrumental in helping Ronda change from judo to MMA. He kept guiding her and reminded her of what she had to do to stay focused on her goals. Dennis was very proud of Ronda when she became the first woman to fight in the UFC. He knew that all his efforts and her trainings paid off. Even when Ronda became a UFC-famous fighter, Dennis did not stop being there for her in every possible way.

He was not only a coach but also a loving stepfather who believed in Ronda’s dreams. His support helped her stay grounded and stay focused on her career. Dennis’s steady presence allowed Ronda to become a world champion in MMA.

Source: celebs.infoseemedia.com