Answer: ASCOTRACECOURSE

AnswerCrossword Clue
ASCOTRACECOURSEHome of the King George VI and Queen Elizabeth Stakes
ASCOTRACECOURSERenowned track where Eliza Doolittle cheers for her horse
ASCOTRACECOURSEBritish track since 1807
ASCOTRACECOURSE"My Fair Lady" locale