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Runners at the Cardiff marathon
Running

Cardiff Half Marathon

  • Date: 5th October 2025
  • Location: Cardiff, UK
  • Distance: Half-marathon
  • Registration fee: £10
  • Fundraising target: £200
I need a charity place I have my own place

Join us at the Cardiff Half Marathon, the second largest half marathon in the UK on a flat and fast course. It’s a fantastic event for both first-time runners and those looking to set a personal best.

You’ll be cheered on by huge crowds, pass iconic buildings in the Welsh capital such as the Millennium Stadium, Cardiff Bay and Penarth Marina, before a grandstand finish in the centre of the city all as part of Team Dementia UK.

Run with us and help raise vital funds so our dementia specialist Admiral Nurses can provide life-changing support to families facing dementia. If you have any questions, please get in touch. 

  • A dedicated member of the fundraising team to support you to the finish line and beyond
  • Training plans
  • A fundraising guide, as well as fundraising advice, hints and tips in the build up to the event
  • A branded Dementia UK running vest for race day
  • Support from the team on race day
  • A range of Dementia UK fundraising materials (collection buckets, posters, balloons etc.) to make any events you hold look amazing

Roles vary from making as much noise as possible at a cheer point to making hard-earned cups of tea for runners post event. We’ll provide you with a Dementia UK t-shirt and all you need to bring on the day is your enthusiasm!

Find out more about volunteering for Dementia UK.

Every penny you raise from your event will help our dementia specialist Admiral Nurses provide a lifeline to more families facing dementia – and we’re here to support you every step of the way. 

Fundraising ideas 

Organising another fundraising activity alongside your main challenge will help you smash your goal. Here are some ideas: 

  • host a quiz 
  • arrange a raffle 
  • hold a sweepstake on how long your challenge will take, or the distance you’ll achieve 
  • organise a bake sale at home, at work or in your community 
  • create a sponsored playlist, where supporters donate to add their choice of song 

Your fundraising welcome pack 

Once you’ve signed up for your challenge, we’ll send you a fundraising welcome pack that’s full of advice on how to meet – and beat – your target.  

JustGiving  

Setting up a JustGiving page is a great way to fundraise online. Share your link with family, friends and colleagues, and watch the donations roll in.  

You can use JustGiving to explain why you’re taking on your challenge for Dementia UK, keep track of how much you’ve raised, and even share your training progress using Strava so your supporters can see how well you’re doing. The more you update and share your JustGiving page, the more donations you’ll receive. 

Gift Aid 

If your supporters are UK taxpayers and their donation is voluntary (not proceeds of a sale), we can claim an extra 25p for every £1 donated – at no extra cost to them. Make sure they fill in the Gift Aid form in your fundraising pack or tick the correct boxes if they’re donating online. 

Sending in your donations 

If you’re fundraising through JustGiving, the donations will automatically come to us. If you’ve got cash to pay in, you can do this online, by phone, by bank transfer or by post. 

Definitions
“Dementia UK/We/Us/Our” means Dementia UK (Registered Charity Number 1039404) of 7th floor, One Aldgate, London, EC3N 1RE. The charity that has reserved Your place in the Event.

“You/Your/Yourself” means the person agreeing to be bound by these terms and conditions and who is using a Dementia UK place to take part in an Event.

“Event” means the Cardiff Half Marathon

“Event Organiser” means the company Run 4 Wales Ltd (company number 08057072) responsible for organising the Cardiff Half Marathon

“Fee” means the registration fee that You are required to pay to confirm Your place in the Event.

  1. Participation
    1. You acknowledge that participation in the Event may be physically demanding and You are aware of the nature of the Event and associated medical and physical risks involved.
    2. You agree that you are physically capable of taking part in the Event and agree to be solely responsible for your actions and save as provided elsewhere in these terms and conditions. Dementia UK are not responsible for any injury or illness that You may suffer as a result of Your participation in the Event.
    3. The minimum age of entry is 17 years at the date of the event.
    4. You have read, agree to and accept the Event Organiser’s General Conditions of Entry. To the extent there is any conflict with these terms and conditions, the terms of the General Conditions of Entry shall prevail.
  2. Bookings, Payments and Your obligations
    1. You shall complete the Dementia UK Application Form. On successful application You will submit payment of the Entry Fee of £10.00. You may also be required to register Your place on the Event directly with the Event Organiser.
    2. You shall not be eligible or entitled to participate in the Event and no binding contract shall exist between You and Us until We have provided You with written confirmation that the application was successful and full payment of the Entry Fee has been received.
    3. In order to take part in the Event, you pledge to raise £200 excluding Gift Aid. You agree to pay all sponsorship monies to Dementia UK within 42 days of the date of Event.
    4. You also agree to:
      1. Notify Us immediately and within 7 days of an event or incident that results in you being unable to take part in the event (whether medical or otherwise).
      2. Comply with any rules or regulation relating to the Event as We or the Event Organiser may notify You of from time to time
      3. Follow all instructions given to Us, the Event Organiser and any of Our or the Event Organiser’s agents, employees or workers, or any referees, stewards or other event officials in respect of the Event.
  3. Withdrawal, Cancellations or Alterations
    1. The Fee is non-refundable and non-transferable to other persons or event year under any circumstances save that We may in our discretion refund the Fee in limited circumstances such as:
      1. The Event is cancelled by the Event Organiser provided that We receive a refund on sums We paid to the Event Organiser for the relevant places in the Event;
      2. Any other circumstances in which, in the opinion of Dementia UK, it would be reasonable to provide a refund. The decision of Dementia UK on this matter is final.
    2. You acknowledge that Dementia UK places are limited, and payment of the Fee and reservation of the place affects expenditure of Dementia UK and charity income for the Event. Notice of withdrawal from the Event must be communicated by emailing  events@dementiauk.org, or by writing to Community and Events Fundraising, Dementia UK, 7th Floor, One Aldgate, London, EC3N 1RE within 7 days of an event or incident that results in you being unable to take part in the event
    3. If you have purchased a charity place with Dementia UK but need to withdraw from the sporting event, Dementia UK cannot guarantee you a deferral to the following event year. All deferral requests must be communicated in writing by emailing events@dementiauk.org and it will be at the discretion of Dementia UK if you are successful as per our deferral policy.
      1. All successful deferral applicants will not be refunded their Fee, however their fundraising can be transferred to their new event date. All deferral applicants will need to repay their Fee for their new event date. Please be aware the cost of the Fee may increase and you are obliged to pay the updated Fee cost.
    4. Your place in the Event is personal to You and You may not transfer it or any of Your other rights or obligations to any other person without our prior written consent and provided that the Event Organiser consents to such transfer.
    5. Places on the Event are strictly limited and are subject to availability. We may refuse entry to remove or exclude or cancel Your place in the Event if:
      1. We consider that your participation in the Event will bring the Event, the Event Organiser or Dementia UK into disrepute or otherwise damage the reputation of Dementia UK, the Event or the Event Organiser
      2. The Event Organiser refuses entry at any time.
  4. Publicity and Results
    1. You understand that Dementia UK may take photograph and video images of you on the day of the Event. You hereby agree that Dementia UK may use any such images to promote Dementia UK, its charitable aims, the Event and future events, whether on its website or in publicity material (both electronic and hardcopy) or on websites and publicity material of third parties. Dementia UK owns all rights in any images and publicity material created by Dementia UK and you shall obtain no rights in relation to the same.
  5. Data Protection
    1. By entering into this agreement, You agree that any personal information provided by You or collected about You in connection with the Event may be held and used by Us in relation to the Event.
    2. You also agree that the personal information provided by You may be shared with:
      1. The Event Organiser who may use it in connection with the organisation and/or administration of the Event or for other reasons associated with the Event.
      2. and in the case of the Event Organiser, we may share the personal information before we have determined whether Your application has been successful.
    3. We will take all steps reasonably necessary to ensure that Your data is treated securely and in accordance with our privacy notice.
    4. You agree to inform Dementia UK of any changes to the information supplied in Your original application as soon as such changes occur.
    5. We will be the data controller of the information which You provide Us or which we obtain in relation to the Event and the Event Organiser will be an independent data controller of any information which We pass on to them pursuant to clause 5.2.