Named one of “America’s Most Iconic Races” by Runners World, the OneAmerica 500 Festival Mini-Marathon is one of the nation’s largest half marathons (for the past 20 years) and annually attracts participants from all 50 states and 15+ countries around the world. Known as The Greatest Spectacle in Running, the race starts and finishes in downtown Indianapolis and includes a lap around the Indianapolis Motor Speedway, home of the Indy 500. The flat, fast course is packed with thousands of the nicest volunteers you’ll ever meet, 16 course aid stations and nearly 500 course entertainers.