The Challenge is a self navigated set of races comprising of 3 distances – Half Marathon, 20 Mile and Marathon – and new for 2019, the Hilly Billy Challenge 50k Ultra. Each has it’s own set of instructions and a map which you should familiarise yourself with before the event. The Half Marathon, 20 Mile and Marathon races begin together at 9am and the Hilly Billy Challenge begins at 8am from the Race HQ. All distances contain checkpoints which you must display your number to as you go through. More information can be found below.