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Bewl Water 10K, Half Marathon, Marathon & Ultra

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Take part in this incredibly scenic late spring run. Great for runners of all abilities, the course loops around the reservoir on a mix of woodland trails and quaint country lanes. Come for the finisher's medal or to see the flowers in bloom.
C-19 Plan
Hermes Running has confirmed that this event will be going ahead as planned on Friday 7th May 2021 in accordance with the COVID-19 safety measures. Learn more

Review summary

31 Reviews
  • Course
  • Organisation
  • Atmosphere


Angela V
"My husband ran so can't comment on the course except that he said it was..."


James H
"I did the half marathon this year and it was fantastic! Very beautiful course..."


Brian G
"Nice race through the countryside, well marshaled too! I did the 10K this time..."
See all reviews

How to enter the Bewl Water 10K, Half Marathon, Marathon & Ultra

  1. Ultra

    Run 37.5mi
    Entry Closed
  2. Marathon

    Run 26.2mi
    Entry Closed
  3. Half Marathon

    Run 13.1mi
    Entry Closed
  4. 10K

    Run 10km
    Entry Closed

Bewl Water 10K, Half Marathon, Marathon & Ultra routes

The race is set within 1000 acres of picturesque Kent and Sussex countryside.

Each of the routes follow the clockwise “round the reservoir route” at the Bewl Water Country Park which is the largest lake in South East England.

All routes pass through covered forested areas and open countryside overlooking the lake.

The course is only undulating on certain sections, whilst the remaining route is run along quiet country back roads.

Half marathon runners will complete one lap of this course, two laps for the marathon course, and three laps for the ultra.

There will be 3 checkpoints stations, one at the start/finish which will contain water bottles, Chia Charge Bars, GU Energy Gels and bananas for runners. Other checkpoints will be at Rosemary Farm and Burnt Lodge Lane.

Event Details

What’s Included
  • Unique finisher's medal
  • Trophies for 1st, 2nd & 3rd female/male runners for each event
  • Chip timed race (net chip times sent directly to your mobile after the race)
  • Water & aid station
  • Marshalled course
  • Free car parking for runners
Raceday Logistics


08:30 Ultra Marathon Begins

09:00 Marathon Begins

10:00 Half Marathon Begins

10:30 10km Begins

5 minutes before the start of each race there will be a mandatory race briefing and the start is a 5 minute (0.5 mi) walk from the Bewl Water Visitor Centre so please allow plenty of time to arrive at the start.

There will be no official registration on the day but there will be a registration desk (for enquiries/help on the day).

*Race packs and bibs will be posted within 2 weeks of the race date.

Kit List
  • Trail running shoes as the trail can get muddy
  • Hydration pack
  • Gels and food
  • Warm clothing as some of the route is exposed

Spectators are welcome, but it is urged that you keep spectators to a minimum due to the current situation and to ensure the safety of our runners.

Parking for spectators not travelling with their runners will be £5.00 per car.


If you would like to get in touch with the race organiser about volunteering, please contact: [email protected]

Frequently Asked Questions

Where can I access my race time?
The results will be hosted by the Race Director Chip Timing, you will be sent a text of your provisional net time after the race, directly to your mobile number which you provided when registering.
Will the trail remain open to the public?
The trail is open to the public so please watch out for and be respectful of any walkers, cyclists or dog walkers you encounter.
Are earphones permitted for the Bewl Water Half Marathon Marathon Ultra & 10K?
If you have to use music players (MP3 Players / iPod’s) please ensure that these are the Aftershokz over-ear bone conducting earphones, not in-ear earphones. It is also asked that you are able to hear the marshals instructions and that you are courteous of all other trail users.
Are there cut-off times for this event?
Yes, the cut-off times are as follows; 10k cut-off is 2.5 hours; Half Marathon cut-off time is 6 hours; Marathon cut-off time is 7.15 hours; and Ultra cut-off time is 8 hours.
Is there an age requirement to participate?
Yes, participants must be 16+ for the 10k, 17+ for the Half-Marathon, and 18+ for the Ultra and Marathon events.

Bewl Water 10K, Half Marathon, Marathon & Ultra weather forecast

Mostly cloudy throughout the day.

Predicted highs
Predicted lows
IconLight breeze possible, up to 9mph

Meet the organiser

Are you the organizer? Claim this page

Organised Race Events In Surrey & Kent. These include the Thames Meander (Kingston-upon-Thames) Surrey, Magna Carta (Runnymede) Surrey, North Downs Way (Reigate) Surrey and the Bewl Water (Lamberhurst) Kent. All of the races are geared up towards both the novice runner, as well as the more experienced veteran runners.



Bewl Water 10K, Half Marathon, Marathon & Ultra reviews (31)

4.1 out of 5 stars

  • Course
  • Organisation
  • Atmosphere
  • A

    Ashley D

    Did the 10K in 2020

    Terrible marshaling 73 10k runners and all did the wrong course.
    Happened last year too. Won't be coming back
  • Did the Ultra in 2019

    Fantastic event. Great value for money and well organised! Couldn’t of asked for better. The medals were great and I will be back again
  • Did the Marathon in 2019

    Great course, was my first marathon which I probably could have chosen A slightly easier less hilly one, but loved it, and coming 3rd lady was just the icing on the cake. Would definitely do it again!
  • Did the Ultra in 2019

    Fantastic ultra through Kent. Really loved the course, not too many hills so as relaxing as 60k can be!
  • Did the Half Marathon in 2019

    Nice route, you can (almost)forget about the distance in your legs when you can look our over the water! Having both road and trail made for a nice mix.
  • Did the 10K in 2019

    Nice race through the countryside, well marshaled too! I did the 10K this time but I might be back for the half next year.
  • Did the Half Marathon in 2019

    I did the half marathon this year and it was fantastic! Very beautiful course and well organised, also enough of challenge without being too much of a slog. If I try a marathon next year it might be this one!
  • Did the Marathon in 2019

    Beautiful route in beautiful surroundings, good mixture of road and trail and a challenging terrain. Well organised and great atmosphere
  • Did the Half Marathon in 2019

    My husband ran so can't comment on the course except that he said it was challenging. However a few aspects of the organisation were really quite poor. You have to your race pack on the day as they won't post out in advance so you need to get there in plenty of time. The start is a significant walk away from the cafe area where you register. You were supposed to be at the start 15 minutes beforehand for the briefing but many people were turning up much later, obviously not realising how far they had to walk to the start. As a result, the race started a bit late. Only the people at the front could hear the briefing, the runners further back couldn't hear a thing or even the starting klaxon. After the runners went, the spectators started walking back towards the cafe area only to be faced with runners from the 10K event coming the opposite way shouting at them to get out of the way. There were no indications that there would be runners coming in, otherwise we would have kept to the sides. Part of the course actually ran on the same road as where the cars were leaving the car park, so as later runners were coming in, they were battling with cars coming the other way. This seemed very silly and dangerous and surely unnecessary. We then didn't see the results for another couple of days an only found out by accident that they were there. They were not on any of the organisers websites where previous years results were, the only way to find them was by a link buried in a previous email. Then to top things off, the photos appeared online and there was not a single one of my husband! Not one! Never experienced that before! This has the potential to be a good race but it is disappointing that after running for several years they have still not got their act together.
  • Did the Marathon in 2019

    Fantastic race. Great organisation both in advance and on the day, and lovely facilities at the Bewl Water visitor centre - nice loos with no queues, and efficient race number pick-up and bag drop/collection. Challenging but enjoyable trail route through beautiful scenery. Well-stocked aid stations. Will definitely run again!
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