These three races constitute the Triple Crown – a series of horse races for three-year-old Thoroughbreds. However, the modern history of US horse betting can be traced back to the establishment of the Belmont Stakes in 1867, the Preakness Stakes in 1873, and the Kentucky Derby in 1875. Organized horse racing in the United States began in the 1600s. Horse racing is an ancient pastime, and we can trace the history of betting on horses back to the Roman civilization when chariot racing was the most popular sport of the empire. Lastly, we will provide a checklist of things to consider when betting on horse racing. After reading this guide, you will understand how horse racing odds work and how to prepare for successful betting using advanced strategies.