A 100 mile ultramarathon linking the Severn Bridge and the Humber Bridge across England and Wales. The route traverses varied terrain including long-distance trails, rural paths and linking road sections, crossing countryside from west to east. Elevation is moderate and accumulated through rolling hills rather than sustained mountain climbs. Underfoot conditions vary between firm track, trail and occasional paved surfaces. Event format, navigation requirements and aid station locations are defined by the organiser’s official race information.

• Other races at the same event:
The Bridge 200 Mile Ultra Marathon