The River Ayr Way Ultra and Relay returns on 13 September, offering runners a chance to tackle one of Scotland’s most scenic and historically rich endurance challenges. Known affectionately as the RAW Challenge, this 40-mile ultra-marathon is a highlight of the Scottish Ultra Marathon series and continues to attract athletes from across the country.

The route follows the full length of the River Ayr Way, Scotland’s first official source-to-sea long-distance path. It stretches 44 miles from Glenbuck Loch, nestled in the hills of East Ayrshire, all the way to the coastal town of Ayr. Along the way, runners will traverse a variety of landscapes, from wooded valleys and open farmland to riverside trails and historic villages.

Organisers say: "The RAW Challenge is more than just a race. It’s an invitation to explore one of Scotland’s lesser-known yet most captivating routes. Runners can expect warm support at checkpoints every 10 miles, where fruit, cold drinks and friendly volunteers offer encouragement and essential fuel."

Opened in 2006 by Fred Macaulay, the River Ayr Way is now recognised as one of Scotland’s Great Trails. The route offers runners not only a physical challenge but a journey through the heart of Ayrshire’s natural and cultural heritage. The trail is steeped in stories, with connections to Robert Burns, William Wallace, John Loudoun Macadam and the Covenanters. It also boasts an abundance of wildlife, including otters, badgers, herons and even hen harriers.

Whether you’re a seasoned ultra-runner or part of a relay team looking to experience something unforgettable, the RAW Challenge offers a unique opportunity to race through history, wildlife and the raw beauty of southern Scotland.

If you'd like to know more, visit the River Ayr Way entry page.

Image: East Ayrshire Leisure