That is what we discovered on Wikipedia concerning the Oceania Judo Open Championships:

The World Judo Championships are the highest level of international judo competition, next to the quadrennial judo events at the Summer Olympic Games. The world championships are held by the International Judo Federation annually, except the calendar years of the Summer Olympics. Qualified judoka compete in their respective categories as representatives of their home countries. Team fixtures have also been held since 1994. The men's championships first took place in 1956, though the format and periodicity of the competition have changed over time. The last edition of the World Judo Championships (2025) was held in Budapest, Hungary.