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Distance

100 Miles

Elevation

560M

Start Date

Sat, 1st May 2027

Location

Richmond, London

Cut-off Time

30 Hours

Centurion Thames Path 100 Mile Ultra Marathon

Take on one of the UK's most iconic and best-loved 100 milers. The Centurion Thames Path 100 is a spectacular point-to-point 100 mile ultra marathon, tracing the course of the famous river from the outskirts of London to the historic heart of Oxford. Famed for its flat, fast and scenic course, this is an ultra that promises an unforgettable adventure.

As the first event in the prestigious Centurion 100 Mile Grand Slam, the TP100 (Thames Path 100) is a bucket-list race for newcomers and seasoned ultrarunners alike. It’s the perfect setting to chase a personal best or to conquer the 100 mile distance for the very first time.

Course

The course is defined by its lack of hills. Over the 100 mile (161km) distance, the route accumulates a mere 560m (1,900ft) of elevation gain, making it one of the flattest 100 mile ultras in the UK. The challenge here is not in conquering mountains, but in managing the relentless, repetitive nature of the flat terrain, which tests your mental fortitude and pacing strategy to the absolute limit.

Your journey begins in Richmond, London, and follows the well-marked Thames Path National Trail upstream. You will run on beautifully maintained riverside paths, through quintessential English scenery of meadows, tranquil woods, and charming towns and villages. The course is approximately 75% trail and 25% paved path, offering a smooth and runnable surface throughout. As you leave the hustle and bustle of the capital behind, you'll be treated to a serene and picturesque run all the way to the triumphant finish line in Oxford.

The Centurion Thames Path 100 miler is a true classic of the UK ultra scene and the Centurion Running aid stations are second to none. If you are looking to take on your first 100-miler or chase a new PB, there is simply no better place to do it.

For full race details, including registration info, please visit the official Centurion website.

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