Complex sentence: The Middle Park Stakes is a Group 1 flat horse race in the United Kingdom for two-year-old thoroughbred colts run over a distance of 6 furlongs (1,207 metres) at Newmarket's Rowley Mile course in late September/early October.
Split into simpler sentences: The Middle Park Stakes is a Group 1 flat horse race in the United Kingdom for two-year-old thoroughbred colts. It is run over a distance of 6 furlongs (1,207 metres) at Newmarket's Rowley Mile course in late September or early October.