Complex sentence: The Gallant Bloom Handicap is a race for thoroughbred horses open to fillies and mares age three and up and is run each fall at Belmont Park for a purse of $150,000.
Split into simpler sentences: The Gallant Bloom Handicap is a race for thoroughbred horses. The race is open to fillies and mares age three and up and is run each fall at Belmont Park for a purse of $150,000.