In both cross country and athletics Judd competes nationally and internationally, winning competitions such as the National Schools' Cup in both sports at junior and intermediate level. The school has won 6 of 10, and the King Henry VIII relays in Coventry. In 2004, the school's cross country team became the first school in a decade to end the dominance of public schools Winchester College and St Albans School at the Knole run in Sevenoaks. The school cross country squad has an annual training camp in Lanzarote in December, which acts as both a reward for effort and a valuable warm-weather training camp in preparation for January's Knole Run. The school holds weekly matches against local schools. School teams compete in other sports such as basketball, tennis and hockey. During the 2020 and 2021 UK coronavirus lockdowns the school's Cross Country Team organised two virtual charity runs in support of NHS Charities Together and Greenhouse Sports. The student-organised events raised a combined total of £13,578.