The River Ayr Way Challenge (RAW Challenge) is an iconic 40-mile ultramarathon held annually in Ayrshire, Scotland, with the 2025 edition scheduled for Saturday, 13 September. The route begins at Glenbuck Loch, the river’s source, and follows the entirety of the River Ayr Way to its mouth at Ayr’s Riverside Stadium. Runners can compete solo or as part of a relay team of two or three, with transition points at Sorn and Annbank. The trail offers varied terrain—woodland paths, farm tracks, and short road sections—offering both beauty and challenge. This well-supported event includes water stops every 5 miles, major aid stations every 10 miles, and optional pre-race transport from Ayr to the start.
Races
40 Miles
40 Miles
Race Date:
13 September, 2025
Also taking place on Saturday, September 13, 2025, the River Ayr Way Challenge Ultra Marathon Relay allows teams of 2 or 3 runners to cover the 40-mile course in stages: Glenbuck to Sorn (17 miles), Sorn to Annbank (14 miles), and Annbank to Ayr (9 miles). Organized by East Ayrshire Leisure Trust, the relay offers a team-based experience along the scenic River Ayr Way. 
Weather based on historical averages.
FAQs
What is the River Ayr Way Challenge Ultra Marathon Relay?
How long is the River Ayr Way Challenge Ultra Marathon Relay?
Where does the River Ayr Way Challenge Ultra Marathon Relay take place?
What is the elevation gain of the River Ayr Way Challenge Ultra Marathon Relay?
How can I prepare for the River Ayr Way Challenge Ultra Marathon Relay?
How do I choose the right training plan for the River Ayr Way Challenge Ultra Marathon Relay?
Also taking place on Saturday, September 13, 2025, the River Ayr Way Challenge Ultra Marathon Relay allows teams of 2 or 3 runners to cover the 40-mile course in stages: Glenbuck to Sorn (17 miles), Sorn to Annbank (14 miles), and Annbank to Ayr (9 miles). Organized by East Ayrshire Leisure Trust, the relay offers a team-based experience along the scenic River Ayr Way. 
The River Ayr Way Challenge Ultra Marathon Relay is 64km long.
The River Ayr Way Challenge Ultra Marathon Relay takes place in Glenbuck Loch.
Runna classifies the River Ayr Way Challenge Ultra Marathon Relay elevation profile as Rolling.
The best way to train for the next race is to use a personalized training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalized training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the River Ayr Way Challenge Ultra Marathon Relay?
Also taking place on Saturday, September 13, 2025, the River Ayr Way Challenge Ultra Marathon Relay allows teams of 2 or 3 runners to cover the 40-mile course in stages: Glenbuck to Sorn (17 miles), Sorn to Annbank (14 miles), and Annbank to Ayr (9 miles). Organized by East Ayrshire Leisure Trust, the relay offers a team-based experience along the scenic River Ayr Way. 
How long is the River Ayr Way Challenge Ultra Marathon Relay?
The River Ayr Way Challenge Ultra Marathon Relay is 64km long.
Where does the River Ayr Way Challenge Ultra Marathon Relay take place?
The River Ayr Way Challenge Ultra Marathon Relay takes place in Glenbuck Loch.
What is the elevation gain of the River Ayr Way Challenge Ultra Marathon Relay?
Runna classifies the River Ayr Way Challenge Ultra Marathon Relay elevation profile as Rolling.
How can I prepare for the River Ayr Way Challenge Ultra Marathon Relay?
The best way to train for the next race is to use a personalized training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
How do I choose the right training plan for the River Ayr Way Challenge Ultra Marathon Relay?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalized training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
More
Sport:
Running
Tags:
Nature
Relay
This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by River Ayr Way Challenge 2025 or East Ayrshire Leisure Trust. All event details are based on publicly available information and are provided solely to help users discover running events. Runna does not use any official logos, images, or proprietary content from this event or its organiser. Any trademarks or names mentioned are used descriptively to identify the event in a factual manner. For the most accurate and up to date information (including to register or purchase an entry to the event), please visit the River Ayr Way Challenge 2025 website.