Alles Door Oefening Den Haag, commonly known by the abbreviated name ADO Den Haag, is a Dutch association football club from the city of The Hague. They play in the Eerste Divisie, the second tier of Dutch football, following relegation from the Eredivisie in the 2020–21 season. The club was for a time known as FC Den Haag (), with ADO representing the amateur branch of the club. Despite being from one of the traditional three large Dutch cities, it has not been able to match Ajax, Feyenoord or PSV in terms of success in the Eredivisie or in European competition. There is nonetheless a big rivalry with Ajax and Feyenoord. The Dutch words "Alles Door Oefening" translate into Everything Through Practice.

Cars Jeans Stadion

Donar, also known as Donar Groningen, is a professional basketball club based in Groningen, Netherlands. The club competes in the BNXT League and its home arena is MartiniPlaza, which has a seating capacity of 4,350 people. Donar is one of the traditional first division clubs along with Den Bosch, as it entered the league 51 years ago. The club won the national DBL championship seven times; in 1982, 2004, 2010, 2014, 2016, 2017 and 2018. Donar was runner-up in the seasons: 1998, 2006, 2011, 2015. There are also six NBB Cups – the domestic cup competition – in the honor list of Donar; they won the cup in 2005, 2011, 2014, 2015, 2017 and 2018. Donar has the most fans in the Netherlands, with approximately 1,700 season ticket holders and sells the MartiniPlaza out on a regular basis in the playoffs.