Alan's Algorithm, also known as Racing Ratings, is a free horse racing algorithm that looks at every runner, in every race, every day. The algorithm aims to assess every horse’s chance of winning their race, based on certain criteria. It allocates a numerical value to important information extracted from the horse’s previous race form, as well as external factors like bookmaker odds and the performance of the trainer and jockey. The values awarded for each of the criteria are then added together to create an overall rating for each horse in the race – the ‘ABC Rating’. Essentially, the higher the ABC Rating, the better the chance that horse has of winning the race according to our calculations. The variables that go into the Racing Rating include; ground conditions, odds, recent form, trainer stats, jockey stats, course and distance.