A multi-day ultramarathon along the Pennine Way from Edale to Kirk Yetholm covering approximately 268 miles (431 km). The route follows remote upland terrain across the backbone of England, including moorland plateaus, hill paths and exposed sections. Climbs are sustained with long distances between settlements. Participants must meet strict kit and navigation requirements, with checkpoints positioned along the route for support.

• Other races at the same event:
Summer Spine Sprint South
Summer Spine Sprint North
Summer Spine Challenger