An illustrious field will turn out for the fifth running of the Racehorse to Riding Horse class at this year’s Discover Ireland Dublin Horse Show. From the Cheltenham Gold Cup to the longest race in the world at Lion D’Angers, the RDS Showgrounds will see a selection of top-class racehorses line out in the hope of reaching the winning line once again. On this occasion, their sights will be set on the back straight of ring one at 1:35pm on Saturday, 9 August, for the popular class, kindly sponsored by Irish Thoroughbred Marketing.