Watersley Kids Challenge 2021 – 19 June, 15 August, 5 & 11 September 2021 MTB XCO UCI Class 1 2021 – 19 June 2021 NK Mountainbike XCO 2021 – 11-12 September 2021 Junior Challenge 2. Nationscup – 13-15 August 2021 Ladies Challenge 2. Nationscup – 3-5 September 2021 Womens Challenge Class 2.2 U23 – 3-5 September 2021 Nederlandse Loterij Clubcompetitie – 25-26 September 2021