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Run along the largest river in England with this superb ultra challenge. Great for those new to trail running and experienced trail runners alike, the course meanders its way from Iffley through to Henley. Come for the superb views or for the flat course.

Review summary

21 Reviews
  • Course
  • Organisation
  • Atmosphere


Robert T
"Having run over 100 ultras I do keep drifting back to this one, which is..."


Joshua D
"It was an experience to say the least, maybe one i wasn't expecting to be so..."


Brin W
"This was my second time at the Thames Trot 50. A well organised event with..."
See all reviews

How to enter the Thames Trot Ultra

  1. Ultra

    Run 50mi
    Book Now

Thames Trot Ultra route

Starting 3 miles south of Oxford, the course closely hugs the River Thames as it makes its way through towns, villages and countryside on its way to London.

Runners will use the well maintained footpaths and bridleways and will be able to enjoy the ever changing scenery of the Thames valley.

The finish will be in Henley, where runners will be met with a post race goody bag.

Aid Stations

There will be well stocked feed stations where runners can be cheered on by enthusiastic spectators. There are 5 Check Points, located at approximately 8-9 mile intervals. Each will have water, and a selection of supplementary energy gels, snacks and the famous Go Beyond fruit cake plus savouries at CP3.

Event Details

What’s Included
  • Chip timed event
  • Finisher's medal
  • Finisher's T-shirt
  • Aid Stations
  • Water Stations
  • Bag Transfer
Raceday Logistics


07:00 Registration opens

08:30 Ultra start

All runners should arrive at least 45 minutes before the start of the race in order to drop their bag and complete the registration process.

Kit List

Mandatory Kit List

  • Fully charged mobile phone
  • Head torch and spare batteries
  • Map book (supplied)

Recommended Kit List

  • OS map
  • Compass
  • Water bottle and additional snack

Spectators are more than welcome. The best place to view runners will be at the checkpoints


If you are interested in volunteering for this event, please contact [email protected]

Frequently Asked Questions

Is there a bag drop?
Yes, there will be a bag drop. Also, each competitor will be able to have one bag transferred from the start to the finish.
What is the cut-off time?
There is a cut-off time of 11 hours.
How many checkpoints will there be?
There will be 5 checkpoints located at 8-9 mile intervals. Full details of the checkpoint locations will be sent out to those registered.
Will there be toilets?
There will be toilets at the start and finish.
Is there an age requirement to take part in the Thames Trot Ultra?
Due to the length of the race, participants must be over 18 years old.

Meet the organiser

Our roots are in off road sports. We offer a complete series of Ultra trail runs many of which have become "must do events" in the Ultra race calendar. Staying with the off road and trail theme we have a sprint style duathlon which once again is in a fantastic location with fabulous trails. But we like to provide something for everyone. We are also the organisers of the Northampton Half Marathon and The Pitsford Triathlons (Sprint and Standard), in fact we are a one stop shop for all the races you will ever need. Go Beyond was founded in 2008 and purchased in 2018 by Simon Hollis. We now work with over 30 charities helping them carry out fundraising through sport. So please, come and join us and take your fitness to a new level - and why not raise money for a good cause at the same time.



Thames Trot Ultra reviews (21)

4.1 out of 5 stars

  • Course
  • Organisation
  • Atmosphere
  • Did the Ultra in 2018

    Great cake at aid station
  • Did the Ultra in 2018

    Having run over 100 ultras I do keep drifting back to this one, which is testiment to how enjoyable and well organised it is. Navigiation is easy just follow the Thames Path signs and generally keep the river in site, albeit there are a couple of places where the path leaves the river. The path is muddy and slippery in many places, but I'm a mud monster, so I love this. Dont whine and complain about it, just plough through it. Since its winter the weather is often variable, but again there's no such thing as bad weather, just weak people. To sum up, it's a brilliant race, which every ultra runner should run at some point.
  • Did the Ultra in 2018

    It was an experience to say the least, maybe one i wasn't expecting to be so muddy, i managed to survive the swamps of mud along the course, but i have to be honest, there was certainly not enough communication on how bad it is, seeing as they said before the race this was the best for the past few years. We were there to run, and i believe in doing my research even with Film My Run review on YouTube which is paid for by the marathon cleverly DOES NOT mention or film any of the parts (1/3 course) as swamp. I dont mind but i think the organisers have a duty to be honest, because it can be dangerous and i believe for 2018 only half the field completed it.
  • Did the Ultra in 2018

    This was my second time at the Thames Trot 50. A well organised event with great volunteers. The aid stations were well stocked and the volunteers were really encouraging and understanding. The course is a point to point along the Thames path. With the race being run in February conditions are boggy underfoot but nothing that a good pair of trail shoes can't take in their stride. I really enjoyed the point to point route, it always amplifies the sense of achievement in an ultra. The route winds through a lot of pretty countryside and picturesque towns which line the river & you really feel like you are getting to see the best of the Thames. The finish is well manned but retains the paired back simplicity of an ultra event. Hot tea and Jammie Dodgers at the finish line definitely revived me before the train back to town.
  • Did the Ultra in 2018

    Great race, clear directions and well organised. Beautiful course but very tough going in places with the mud
  • Did the Ultra in 2018

    The oragnisation was second to none, fantastic race. Checkpoints well spaced and well stocked. Course is marked fairly well with national trail markers (would reccomend a couple of way markers in the trickier sections, but nothing a bit of planning wouldn't have avoided on my part!). The ground was very difficult going underfoot, but that was due to the weather (very wet) and comes with running at this time of year (early Feb), so is part of what makes this race such a good challenge. Overall, I would definitely reccomend this to all those looking for a first 50miler or those looking for a good shot at a PB.
  • Did the Ultra in 2018

    Given the weather and muddy stretches it was a challenge, but all in all a good long training run at the beginning of a few months of hard training. It is a great test of your physical and mental strength too key elements of any successful ultra-runner.
  • Did the Ultra in 2018

    The organisation of this event was fantastic right through from registration, the check points straight through to the finish line!! The volunteers who attended aid stations and pointed me in the right direction were incredibly friendly and really helped! Overall this event was tough but highly enjoyable and I will be signing up again!!! Thank you!
  • Did the Ultra in 2018

    Fun and generally great experience. Well organised. Met great people. Lovely volunteers. The race was tougher than I expected. I knew there would be some muddy parts, didn't expect to have so many. Would have prepared differently [more grip on shoes than the trail shoes I wore) would I have known (or be made aware off).
  • Did the Ultra in 2018

    It was good, very hard because of the mud really, I think the event would be much more fun if run in summer. The muddy conditions really were painful
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