Ascot and York

Nick Luck and the Channel 4 Racing team are at Ascot for one of the great days of the racing calendar, featuring the ú1.15 million King George VI and Queen Elizabeth Stakes: one of Europe's best all-age championship races. Today Roger Varian's Postponed looks to make history by following the French mare Dahlia and Godolphin's star Swain as the only horses to win this great race twice in its 65-year history. Plus high-quality support racing from York, including the ú100,000 York Stakes. Ascot: 2.45, 3.20, 3.55 and 4.30pm. York: 3.00, 3.35 and 4.10pm. Presenter: Nick Luck.