The Montane Winter Spine Race is a 431km non-stop ultra along the Pennine Way from Edale in the Peak District to Kirk Yetholm in the Scottish Borders, with a 168-hour (seven-day) time limit. Known as Britain's Most Brutal Race, the event is fully self-supported from 2018 — no crew, no pacers — and requires runners to carry mandatory survival kit including emergency shelter, navigation equipment, and a cooking stove.
Wind chill regularly reaches -20°C and gusts exceed 45mph; the majority of the race is run in darkness, with sleep deprivation, bog navigation, and Pennine winter weather as the defining adversaries. Founded in 2012, the race typically sees 78-91 finishers per edition. Entry qualification requires a completed 80+ mile ultra. Entry fee is £1,345; the January 2027 edition is sold out (waiting list requires a £600 deposit). Edale is accessible by train on the Manchester–Sheffield line. Up to 6 ITRA points are awarded to finishers.