Complex sentence: The Peter Marsh Chase is a Grade 2 National Hunt horse race in the United Kingdom for five-year-old and above horses run over a distance of 3 miles (4,828 metres) at Haydock Park Racecourse in January.
Split into simpler sentences: The Peter Marsh Chase is a Grade 2 National Hunt horse race in the United Kingdom for five-year-old and above horses. It is run over a distance of 3 miles (4,828 metres) at Haydock Park Racecourse in January.