In 2007, a daring runner approached Votwo Events with an audacious question: could he complete the Jurassic Coast Challenge—a grueling 3-day, 3-marathon event—in a single, continuous effort? Whether we laughed or cried at the thought is a blur, but the answer was a definitive "Yes." And so, The ONER was born.

Now, after a brief but successful stint under Brutal Events, The ONER returns to its roots, organized once again by Epic Endurance Events Ltd. with support from Votwo Events. Known as one of the UK’s toughest coastal foot races, this legendary event challenges participants to cover 85 miles of the Jurassic Coast within a 24-hour window.

Each year, about 100 brave souls tackle the cliffs, beaches, and rugged trails of this UNESCO World Heritage Site. "Run, walk, or crawl" was the original event slogan, and it remains as true today as it was 16 years ago. The ONER isn’t just a race—it’s a test of endurance, grit, and sheer willpower, and a unique experience for those bold enough to take it on.