History of the Judo World Championships: The First Edition in 1956

The Judo World Championships held their first edition on May 3–5, 1956, at the Kuramae Kokugikan in Tokyo — a single day of competition that drew 31 athletes from 21 nations and crowned Japan’s Shokichi Natsui as the first world judo champion in history. That event looks almost unrecognizable by today’s standards: no weight classes, no separate women’s competition, a winner-take-all format that paired athletes of every size against each other and resolved the entire championship in one session. Seventy years later, the World Championships draws over 800 athletes from more than 140 nations across a full week of competition in fourteen weight classes. The arc from the Kuramae Kokugikan to the modern event is the history of judo’s transformation from a Japanese martial art into a global Olympic sport.

The 1956 World Championships: Context, Venue, and Format

The decision to hold a World Judo Championship emerged from the organizational infrastructure created five years earlier. The International Judo Federation was established in 1951 in London, bringing together national federations from Europe and the Americas under a shared governing body. Before this, judo had European Championships (first held in 1951) but no global competition to establish a world champion. Japan, as the birthplace of judo and home of the Kodokan — the founding institute created by Jigoro Kano in 1882 — was the natural host for the inaugural event. The venue, Kuramae Kokugikan in Tokyo, was the city’s premier combat sports arena, a building that had hosted sumo and martial arts competitions and carried the institutional legitimacy the occasion demanded. Japan also had a strategic motivation: demonstrating global leadership in judo was a deliberate step toward building the case for Olympic inclusion, a goal that would be achieved at the 1964 Tokyo Games eight years later. The entire 1956 championship format was radically simpler than the modern event. With no weight classes, all 31 competitors fought in the same draw — a 65​kg judoka could face a competitor of 100​kg or more in any round. Shokichi Natsui of Japan won the gold, defeating compatriot Yoshimitsu in the final. The bronze medals were shared by Henri Courtine of France and, significantly, Anton Geesink of the Netherlands — a 21-year-old who had come to Tokyo for the first time and placed in the world’s top four against the sport’s founders on their home mat.

Anton Geesink — The Bronze Medal That Changed History

Anton Geesink’s bronze at the 1956 inaugural World Championships was not merely a result. It was the opening statement of a career that would fundamentally alter the geopolitical narrative of judo. In 1961, Geesink became the first non-Japanese athlete in history to win the World Judo Championship open-weight gold — defeating Japanese competitors who had dominated the event since 1956 and proving that the sport had genuinely spread beyond its country of origin. Three years later, at the 1964 Tokyo Olympics — the Games at which judo made its Olympic debut — Geesink won the open-weight gold medal on Japanese soil, defeating Akio Kaminaga before a partisan home crowd in what remains one of the most significant individual results in judo’s international history. His bronze at the 1956 inaugural event was the beginning of that story: the Dutch teenager who showed up for the first World Championships and returned home with a podium finish became the first athlete to demonstrate that world-class judo could be developed and practiced outside Japan. The 1956 bronze is, in retrospect, the first data point of judo’s globalization. The evolution from Geesink’s era to the current World Championships qualification system follows directly from the 1956 model.

Early Editions: Japan Dominance and Sporadic Scheduling

After the 1956 inaugural event, the World Championships were held sporadically rather than on a fixed annual cycle. Editions occurred in 1958 (Tokyo), 1961 (Paris — where Geesink won his historic gold), and then 1965 (Rio de Janeiro), where a structural change transformed competitive judo permanently. At the 1965 Rio Championships, the first weight classes were introduced: three divisions (−68​kg, −80​kg, and +80​kg) were added alongside an open-weight category. This change was driven by the same forces that had prompted the change in boxing decades earlier: the physical advantages of heavier athletes in an open-weight format were so pronounced that the technical achievements of lighter competitors had no realistic path to the open division. Weight classes created competitive space for every body type and made the championships a meaningful global competition across the full spectrum of athletic builds. The scheduling irregularities of the early editions reflected the event’s status: a major but still experimental global competition, held when organizational capacity and host nation interest aligned, rather than on the automatic annual or biennial cycle that would emerge later.

How the Championships Evolved from Single Category to Modern Format

The structural development of the World Judo Championships from 1956 to the present tracks judo’s organizational maturation decade by decade. Weight classes expanded incrementally: from three divisions in 1965, to six (1979), to seven by the early 1980s, and eventually to the current eight divisions in each gender (fourteen total in the combined championship). Each expansion reflected both the growth of the competitive athlete base and the increasing precision of research and practice about body type and competitive fairness. The women’s program followed a separate but parallel development arc. The first Women’s World Judo Championships were held in New York City in 1980 — 24 years after the inaugural men’s event and nearly a decade before women’s judo was included in the Olympic Games. The two separate events ran in alternating years through the mid-1980s. In 1987, at the Essen World Championships, the men’s and women’s events were formally merged into a single biennial championship — a structural unification that symbolized judo’s commitment to treating both competitive programs as equal pillars of the sport rather than as a primary event and a supplement. The first fully unified championships in a modern sense date from this period.

Team Competition (1994) and Mixed Team Event (2017)

The individual-format championships were supplemented in 1994 when the first World Team Judo Championships were held — initially for men’s national teams only. Team competition added a dimension that pure individual rankings could not capture: the collective strength of a national program across multiple weight classes in a single elimination format. Japan, unsurprisingly, proved the most dominant team in the early editions, but the format also revealed which nations had developed genuine depth rather than one or two standout individuals. Women’s team competition was added in subsequent years. The mixed team event — combining men’s and women’s athletes in a single national team — was introduced at the World Championships level and subsequently adopted for the Olympic Games, making its debut at Tokyo 2020. The mixed team format has become one of the most watched competition days at major championships, combining the narrative of individual athletes competing for their country with team match dynamics that bring national fans fully into the competition in a way individual draws do not always achieve. The development of this format from the 1994 men’s team inaugural to the 2024 Paris Olympics mixed team final represents the most recent structural evolution of the World Championships concept that began at the Kuramae Kokugikan in 1956.

Growth Into a Global Flagship Event: From 21 Nations to 143

The quantitative growth of the World Judo Championships from 1956 to the present is among the most dramatic in any Olympic sport’s history. The inaugural event had 31 athletes from 21 nations — a group dominated by European and Japanese competitors. The 2019 World Championships in Tokyo drew 828 athletes from 143 nations, a 580% increase in national representation over 63 years. This growth was not linear: the largest expansions correspond to specific structural changes (weight class introduction in 1965, women’s inclusion in 1980, the post-1992 Olympic inclusion of women’s judo driving program development globally, the IJF’s active expansion into Africa, Asia, and the Americas in the 2000s). The Doha 2023 World Championships — the most recent edition before the 2024 Paris Olympics — maintained this global scale, drawing athletes from across six continents and serving as the primary Olympic qualification event for Paris 2024. From a single day of open-weight competition on a Tokyo tatami in 1956 to a nine-day global championship with fourteen individual weight categories and a mixed team event, the World Championships have become judo’s defining competitive statement — a mirror of how completely the sport has grown beyond the Kodokan’s original boundaries in under seven decades. For a review of what happened at the Doha 2023 World Championships specifically, the results and storylines from that edition are covered in detail separately.

Frequently Asked Questions

When was the first Judo World Championship held?

The first World Judo Championships were held on May 3, 1956, at the Kuramae Kokugikan in Tokyo, Japan. 31 athletes from 21 nations competed in a single open-weight category. The entire event was completed in one day.

Who was the first judo world champion?

Japanese judoka Shokichi Natsui became the first world judo champion in history, winning the 1956 World Championships in Tokyo. He defeated compatriot Yoshimitsu in the final. The bronze medals went to Anton Geesink (Netherlands) and Henri Courtine (France).

When were weight classes introduced in the World Judo Championships?

Weight classes were introduced at the 1965 World Championships in Rio de Janeiro. Three weight divisions (−68 kg, −80 kg, +80 kg) were added alongside an open-weight category. This replaced the original single-category format that had been used from 1956.

When did women’s judo first have a World Championship?

The first Women’s World Judo Championships were held in New York City in 1980, 24 years after the inaugural men’s event. The two events ran separately in alternating years until they were merged into a single combined championship in 1987 in Essen, Germany.

How many countries compete at the World Judo Championships today compared to 1956?

The 1956 inaugural event had 31 athletes from 21 nations. The 2019 World Championships in Tokyo drew 828 athletes from 143 nations — a 580% increase in national representation over 63 years. This growth reflects judo’s evolution from a primarily Japanese and European sport to a genuinely global Olympic discipline.