Chiltern Ridge Half Marathon

Conquer the historic hills and sweeping ridgelines of Britain's oldest trail in a stunning summer half marathon. The Chiltern Ridge Half Marathon returns for its 8th edition on Sunday, 5th July 2026, offering an epic 21.1km journey along the iconic Ridgeway National Trail between Wendover and Princes Risborough. This fully-marked UTMB World Series Index Race challenges you with 526m of ascent across beautiful, shaded woodlands and open chalk downland, delivering breathtaking views over the Buckinghamshire countryside. With professional organization, a vibrant trail community, and a route steeped in ancient history, it's the perfect test for seasoned trail runners and ambitious road converts alike. Secure your spot for a classic Chiltern adventure.