The Sunrise To Sunset Challenge is a running event held after Christmas at Shrewsbury Cycle Track in Sundorne, Shropshire. It offers distances from 5K and 10K up to a half marathon, marathon, and an all-day ultra. Participants have the daylight hours, from sunrise to sunset, to complete their chosen distance. This format suits runners aiming for a specific distance and those in ultra events seeking continuous movement.
The race takes place on a 1K cycle track, designed for straightforward navigation and accurate measurement, with each lap recorded on a card. The runner achieving the greatest distance by sunset wins. The course is noted for its speed, partly because of the Lightmoor hill being leveled. The event includes music, food, and drinks available near the track. This marks the nineteenth year for the event.