2025 Three Castles 50km: Training plans, distance, date, location, and more

Find out all you need to know about the Three Castles 50km – including how to choose the best training plan to get race-ready and set a new personal best.

Arial view of the race city.

About the event

Taking place on May 31, 2025, the Three Castles 50km Ultra Marathon offers runners a scenic 50km journey along the River Medway, connecting historic sites and natural beauty. With an elevation gain of 257 meters, this race organized by Embrace Ultra combines flat, runnable sections with occasional gentle climbs, making it suitable for various skill levels. Participants will enjoy a route that includes well-marked trails, river towpaths, and passages through quaint villages, alongside three stunning medieval castles. The race finishes at Tonbridge athletics track, where runners can celebrate their achievement with a victory lap, refreshments, and a supportive community atmosphere.

Date: 

Sat
May 31
2025

Location: 

Rochester, United Kingdom

Distance

50km / 31.1mi

Elevation profile: 

Rolling

Website: 

Link

Elevation gain: 

257m /

Number of participants: 

Join 12 people currently training for the Three Castles 50km with Runna

Join other runners just like you, currently training for the Three Castles 50km with Runna

Start your plan

How to train for Three Castles 50km: Three Castles 50km training plans for every runner

To train for Three Castles 50km, you’ll need a personalized training plan and to build up your weekly mileage progressively.

Runna offers running training plans for every runner and goal out there.

With Runna, your running coaching app, you get a personalized 50km training plan that:

  • Structures your week and sets out all sessions for you
  • Automatically adjusts your mileage and types of runs to help you perform at your best
  • Incorporates deloads and strength training
  • Helps you manage your recovery and nutrition

Having a plan will also help with accountability, meaning that you can focus purely on improving your running game.

Check out our personalized 50km training plans to find the one that best suits your goals.

Stories from Runnas

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My first marathon and second ever running race. Sub 3 hour was my goal, but thanks to Runna managed to run a 02:41:49!
Dan C
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02/05
I’m 45 and only started running 12 weeks ago when I downloaded the Runna app.
Just finished my first half marathon - my goal was just to finish it before the 3hr cutoff but I made it in 2 hours 30 mins.
Somaclay
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03/05
Completed my first ever marathon. I had never run more than 5km before the start of this year.
Through training with Runna since January, I’m so proud to say I’ve completed a marathon in 3hr37min
Sathi
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User @sathi6 finishing a race with a medal.
04/05
From struggling to run 5km to running our first half marathon within 6 months of training using Runna! Loved every second of it.
Sara C
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User @saramcclements finishing a race with a medal.
05/05
Trained with Runna for 16 weeks to complete my first 250km ultramarathon in Tanzania in 37 hours
Henry G
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User @henry_galligan finishing a race with a medal.

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Three Castles 50km FAQ: All you need to know about the Three Castles 50km

What is the Three Castles 50km?

Three Castles 50km distance: How long is the Three Castles 50km?

Where does the Three Castles 50km take place?

When is Three Castles 50km?

When is the next Three Castles 50km?

What’s the elevation gain of the Three Castles 50km?

How can I prepare for the 2025 Three Castles 50km?

How do I choose the right training plan for the 2025 Three Castles 50km?

How can I register for the Three Castles 50km?

If you are an official race organiser with any questions about this page, please get in touch: races@runna.com

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Take your running to the next level

Your personalized running coach with tailored training plans to achieve your goals, from running a faster 5k to finishing your first marathon.

Download on the App Store.
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Get Started
Is Runna right for me?
First week free. Cancel anytime.
Scan to get started
Download on the App Store.
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First week free. Cancel anytime.
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