Japan's star judo siblings Hifumi and Uta Abe won the men's 66-kilogram and women's 52-kg categories, respectively, at the world championships Monday, claiming gold medals on the same day for the third straight year.

With their parents watching from the stands, the Tokyo Olympic gold medalists each picked up a second consecutive and fourth career world title, with Hifumi defeating long-time rival Joshiro Maruyama in an all-Japanese final on Day 2 of the championships in Doha.

Hifumi's victory in the match that lasted more than 10 minutes came when two-time world champion Maruyama received his third shido, or a minor violation, of the contest after Hifumi had a period of total control.