THAMES TRAIL ULTRA

Embrace the Thames Trail Ultra: A 47-Mile Journey Through Scenic Britain
Dive into one of Britain's most celebrated ultra-marathons, where runners traverse an awe-inspiring 47-mile route along the historic Thames River. Starting in Iffley near Oxford and finishing at Henley-on-Thames, this point-to-point race offers a blend of picturesque villages, tranquil riverside paths, and challenging terrain that will test your endurance.
The Thames Trail Ultra is more than just a run; it's an immersive experience through England’s countryside. The course follows the Thames Path and parts of the Ridgeway National Trails, showcasing stunning river views and diverse landscapes from smooth tarmac to muddy trails. Runners can expect vibrant communities along the way, traditional rowing clubs, and beautiful houses that add charm and character.
In 2024, the race concludes at Henley-on-Thames’s YMCA Y Centre, providing runners with hot food, showers, and changing facilities upon crossing the finish line—a welcome reward for your efforts. The event is also a UTMB Index Race in the 50K category, offering valuable points to ultra-runners.
Support along the route includes five aid stations equipped with water, snacks, and Go Beyond fruitcake, ensuring you stay fueled throughout the journey. Real-time GPS tracking keeps both runners and supporters informed of your progress, adding an extra layer of safety and engagement.
Registration opens at 7:00 AM on Saturday, October 25th, 2025, with a strict start time of 8:15 AM for all participants. The entry fee is £70.00, which includes the tracker needed to follow the route updates provided via GPS.
The race covers 40.4 miles on cross-country trails and riverside paths (86%) and 6.6 miles on roads (14%), with an elevation gain of +947 feet (+289m) and a loss of -1,053 feet (-321m). A cut-off time of 11.5 hours is enforced progressively from Checkpoint 3 onwards.
Runners are required to carry essential kit such as a fully charged mobile phone with race director's contact numbers, power bank for recharging, water bottle or bladder (minimum 1L), survival blanket, waterproof jacket, whistle, headtorch/body torch with spare batteries, hat and gloves, long-sleeved base layer or fleece top, debit/credit card, and trail shoes recommended due to the varied terrain.
For those seeking accommodation near Iffley, options include Airbnb, Hawkwell House Hotel, or other nearby hotels. Limited parking is available at Iffley for early arrivals, while a courtesy shuttle bus from Oxford train station transports runners to the start line. After the race, Twyford station offers easy access back home.
Don't miss this iconic challenge that combines breathtaking scenery with a true test of your endurance and navigational skills along one of England’s most celebrated rivers. Sign up now for an unforgettable adventure!
Registration opens at 7:00 AM on Saturday, October 25th, 2025.
Start time is strictly at 8:15 AM.
Entry fee includes tracker and essential support services throughout the race.
Join us for a remarkable journey along the Thames.