The British horse racing calendar is a structured schedule that outlines the major racing events throughout the year. It typically runs from late December to early November, featuring a variety of races across different tracks. Key events include the Grand National, Royal Ascot, and the Cheltenham Festival, which attract significant attention from fans and bettors alike. Races are categorized into flat racing and jump racing, with flat racing occurring mainly from March to November and jump racing from October to April. Each season showcases a mix of local and national events, providing opportunities for both established and emerging horses and jockeys to compete.