Cornelius Lysaght talks to Simon Claisse about his remarkable 20-year career at Cheltenham which took in huge stories both on and off the track. Revered by many... When a date was confirmed for Simon Claisse’s departure from the pivotal jumps racing role of Cheltenham’s clerk of the course after 20 Festivals at the helm, the track’s long-serving head groundsman, Ben Hastie, set about producing a compilation of video-tributes to his boss.