Nielsen Sports predicts the most watched Cheltenham Festival in ten years, boosting sponsorship values by up to 25% Share March 16, 2021 Dm4r Sport News Nielsen Sports has forecast that the 2021 Cheltenham Festival will receive its biggest viewership in a decade Potential for a 25% jump in sponsorship value expected due to an increased Source Source : Nielsen Sports predicts the most watched Cheltenham Festival in ten years, boosting sponsorship values by up to 25%