Windsor Marathon & Half Marathon River Trail Run

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Review summary

2 Reviews
  • Course
  • Organisation
  • Atmosphere


Charles G
"Very little communication before the race and when I asked about clarification..."


Kofo O
"This has to be the most badly organised race I've ever experienced. It was my..."
See all reviews

Distances in this event

  1. Marathon

    Run 26.2mi
    Entry Closed
  2. Half Marathon

    Run 13.1mi
    Entry Closed

Windsor Marathon & Half Marathon River Trail Run routes

Mainly run along river trail paths, the course incorporates many of the key landmarks that have made Royal Berkshire and its surrounding area so famous. It is an absolute must for anyone looking for a break from the pavement grind and a change of scenery.

Event details

  • Trails
  • 5000 participants

From the organizer

F3 Events

Verified organizer

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F3 Events

Due to demand & following the hugely successful Royal Windsor Marathon and Half Marathon River Trail Run, we are excited to announce the NEW Windsor Marathon Half Marathon River Trail Run taking place this October!

This awesome event takes place in an iconic setting. Runners will pass the historical sites of Windsor, Boveney Lock, Bray, Dorney, Maidenhead and Eton, finishing with Windsor Castle in front of you!


The event is not designed to be a gruelling cross country through deep mud and puddles, but aims to be a fun, friendly and fast trail run along one of England’s most historic courses. We hope that our onsite facilities, commentary and music provide plenty to keep other halves and little ones entertained, ensuring a day out for all the family while you run.

Limited to 1000 participants.

What’s Included

Registration is open on the following days:
Saturday 6th October: 3:00pm – 6:00pm
Sunday 7th October: 7:00am – 8:15am

Frequently Asked Questions

When will I receive my race pack for the Windsor Marathon & Half Marathon River Trail Run?
All race packets for the Windsor Marathon & Half Marathon can be collected at registration the day before the event, Saturday 6th October from 3PM to 6PM, or the day of the event, Sunday 7th October from 7AM to 8:15AM. Nothing will be sent through the post for this event.
Is the Windsor Marathon & Half Marathon River Trail Run family-friendly?
The Windsor Marathon & Half Marathon are not designed to be a grueling or competitive. Its scenic trails and wave-start format creates a relaxed and friendly atmosphere for all participants. There is however a minimum age of 17 years old for runners and no dogs or prams are allowed on the course.
At what time does the Windsor Marathon & Half Marathon River Trail Run start?
The Windsor Marathon will start at 8:30AM and proceed with rolling waves to reduce congestion along the course. The Windsor Half Marathon will follow, starting at 9:30AM and also using the rolling-start format.
Have a question? Get answers from our team.

Windsor Marathon & Half Marathon River Trail Run weather forecast

Drizzle throughout the day.

Predicted highs
Predicted lows
IconHigh chance of rain
IconLight breeze possible, up to 7mph

Windsor Marathon & Half Marathon River Trail Run reviews (2)

2 out of 5 stars

  • Course
  • Organisation
  • Atmosphere

Reasons people recommend this event

Helpful volunteers

  • Did the Marathon in 2018

    Very little communication before the race and when I asked about clarification of the route and water stations it took weeks to get a very curt reply. The race map shows the marathon course as a little over 25 miles, and sadly this proved to be accurate - the course was a mile short! I spoke to several people after the race who all confirmed their GPS watches showed ~41km. I don't understand how you can sell tickets for a marathon knowing full well that the course is short by such a considerable distance. I did laps of the gardens to make up the final 1.2km, and I saw a few others doing the same. The course itself is very scenic, and I found the marshals were very friendly. The water stations were about every 7km, which is a bit thin, and only giving out water and energy gels - some sports drink would have been good. At the finish line there was just water and the medal, no other food or drink, or indeed a goodie bag. Sorry, but I cannot recommend this race.
  • Did the Marathon in 2018

    This has to be the most badly organised race I've ever experienced. It was my 3rd marathon, but had it been my first it would probably have put me off marathons for life!OK, let's start with the positives- essentially everything outside the control of the organisers- great weather (perfect actually); incredibly stunning course (that's the location); a massive personal best!What could have been done better? Loads!!! Race started later than scheduled, in fact the starting line was being assembled after the runners started to arrive. The course wasn't consistently clearly marked, which led to runners getting lost (and costing precious PB minutes). No energy drinks at stations, only water. Insufficient drinks stations and not at all the locations we've been informed in the competitor notes. No mile markers!! I had to rely on my watch for an idea of distance covered/ remaining!Forget race shirts or goodie bags, there weren't even enough drinks at the end (the water ran out!), nothing to eat but some bruised bananas.Not sure what we paid for actually