Complex sentence: The Champagne Stakes is a Group 2 flat horse race in the United Kingdom for two-year-old thoroughbred colts and geldings run over a distance of 7 furlongs (1,408 metres) at Doncaster Racecourse during the St Leger meeting in September.
Split into simpler sentences: The Champagne Stakes is a Group 2 flat horse race in the United Kingdom for two-year-old thoroughbred colts and geldings. It is run over a distance of 7 furlongs (1,408 metres) at Doncaster Racecourse during the St Leger meeting in September.