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AnnMaria De Mars

b. 1958

American judoka

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About AnnMaria De Mars

Born 1958. AnnMaria De Mars is an American judoka and mediator.

AnnMaria De Mars (; born August 15, 1958) is an American technology executive, author and judoka. She is the first American to win a gold medal at the World Judo Championships, competing in the -56 kg weight class, for the 1984 World Judo Tournament.

De Mars is the chief executive officer of 7 Generation Games and The Julia Group, as well as a statistical consultant and activist, having authored grants for various Native American programs. Before she launched 7 Generation Games as its CEO, De Mars was Vice President of Spirit Lake Consulting Inc., a tribal institute based on the Spirit Lake Tribe Indian Reservation and was actively involved in the Tribe's Education and Vocational Rehabilitation programs.

In 2013, De Mars was named in Forbes annual list of the "40 Women to Watch Over 40" recognizing the accomplishments and backgrounds of women who are making major professional contributions after the age of 40, in the fields of innovation and disruption. In 2016, she was inducted into the International Sports Hall of Fame.

Early life She was raised in the small community of Alton, Illinois.

Career

1970–1995

De Mars began her judo career at the age of 12 at a local YMCA. The same year, she entered college at Washington University in St. Louis as a Business major. At the age of 18, as a college junior, De Mars was an exchange student at Waseda University in Tokyo, Japan. While there, she trained under Sensei Osawa.

She graduated from college with a degree in business in 1978. She also won the US Senior Nationals, US Collegiate Nationals and the US Open. In the absence of women's judo world championships, she quit competitive judo and studied for an MBA at the University of Minnesota. which came in handy while teaching her daughter Ronda the proper mindset to take before fights.

De Mars enjoyed more success in 1983, including the Pan American Games and US Senior Nationals, and in 1984, winning the Austrian Open, Canada Cup (now known as the "Rendezvous"), and the US Senior Nationals. She came out of retirement to win the 1984 World Judo Championships, becoming the first person representing the United States to win a World Judo Championships (her name at the time was Ann-Maria Burns).

1995–present In 1995, De Mars' then-husband Ronald Rousey suffered a sledding accident which resulted in a broken back and chronic pain. Later, he was diagnosed with Bernard–Soulier syndrome, which complicated his pre-existing injuries and he was given a prognosis of two years to live. He later committed suicide. Following this, De Mars moved her family back to Southern California and settled in Santa Monica, where she homeschooled her children.

Following the move, De Mars remarried, and helped coach her daughter Ronda Rousey, to win a gold medal at the 2004 World Junior Judo Championships and a bronze medal at the 2008 Olympics. Ronda is now a professional mixed martial artist and a former UFC Women's Bantamweight Champion.

De Mars frequently coaches and spars at a gym in Los Angeles, where she can recall breaking her wrist the first time Ronda finished a throw against her: "I didn't really think I was going to go, you know, so I put my hand out and she caught me", De Mars said. De Mars would "always, always, always tell kids don't reach for the mat."

In 2013, De Mars and Jimmy Pedro Sr. co-wrote the instructional book Winning on the Ground, published by Black Belt books.

Her philosophy in judo argues for an offense-centered attack.

Teaching and technology De Mars began working for the Spirit Lake Reservation in 1990, where she wrote the first federal grant to tribes for early childhood tracking with special education staff from all the reservations in North Dakota. She also wrote and taught the first course offered over the internet by a tribal college. While there, De Mars performed evaluations for talent search, vocational rehabilitation, Health Careers Opportunity Program (HCOP), Even Start Family Literacy and SAMHSA Grants.

In 2008, De Mars was hired by the University of Southern California ITS Customer Support Department as a statistical consultant. She has over 27 years experience working in SAS and has contributed through her many Wiki and Blog Pages. She supports both UPC and HSC Campuses including the satellite office in Orange County.

Personal life De Mars is the mother of Ronda Rousey, an Olympic bronze medalist judoka and former UFC Bantamweight world champion. She is also the mother of María Burns Ortiz, a sports journalist who serves as the social media columnist for ESPN.com and as a contributor to Fox News Latino.

De Mars is Catholic.

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Important facts

Birth century
Occupation
Nationality
Education
University of Minnesota, Waseda University

People in AnnMaria De Mars's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped AnnMaria De Mars's

Frequently asked questions

Who is AnnMaria De Mars?

American judoka

When was AnnMaria De Mars born?

AnnMaria De Mars was born on 15 August 1958 in Scott Air Force Base.

What is AnnMaria De Mars's occupation?

AnnMaria De Mars is a judoka and mediator.

What nationality is AnnMaria De Mars?

AnnMaria De Mars is American.

Sources & further reading

· Wikipedia: AnnMaria De Mars

· Wikidata: Q4766540

· DBpedia: AnnMaria De Mars

Cite this page

APA: Biography.guide. (2026). AnnMaria De Mars. https://biography.guide/annmaria-de-mars/

MLA: "AnnMaria De Mars." Biography.guide, https://biography.guide/annmaria-de-mars/.

Chicago: "AnnMaria De Mars." Biography.guide. https://biography.guide/annmaria-de-mars/.

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