The 1986–87 OB I bajnokság season was the 50th season of the OB I bajnokság, the top level of ice hockey in Hungary. Seven teams participated in the league...

The Országos Bajnokság I (English: Nationwide Championship; commonly abbreviated OB I) is the highest level hockey league in Hungary. After the formation...

Országos Bajnokság I (English: Nationwide Championship I, commonly abbreviated OB I) is the highest level water polo league for men in Hungary, that is...

1986–87 Országos Bajnokság I (men's water polo) was the 81st water polo championship in Hungary. Fourteen teams played each other twice for the title....

The Women's Water Polo First League (Női Országos Bajnokság I) is the premier Hungarian championship for women's water polo clubs. First held in 1984...

OB I water polo league at any time since its formation in 1904. OB I teams playing in the 2014-15 season are highlighted in green. Országos Bajnokság...

Championship in the OB I Bajnokság. The Romanian teams also compete in the Romanian National Championship Liga Națională. In the first season, the league comprised...

1985–86 Országos Bajnokság I (men's water polo) was the 80th water polo championship in Hungary. There were fourteen teams who played two round match...

professional water polo team based Szolnok, Hungary. Founded in 1921, it plays in OB I, the top division championship in the country, which they won on nine occasions...

Dunaújvárosi Acélbikák The Dunaújváros Steel Bulls have previously won the OB I bajnokság title four times: 1995-96 1997-98 1999-00 2001-02 2012-13 The Dunaújváros...